Work and Energy 01 | Work done | Numerical on Work | Class 9 | NCERT | Sprint

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Physics Wallah Foundation

Physics Wallah Foundation

Күн бұрын

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@PW-Foundation
@PW-Foundation 3 жыл бұрын
📝Download Lecture Notes From PhysicsWallah App : bit.ly/2SHIPW6 🎯 Science group- t.me/joinchat/RYszj_1cAl8xEvnv 🎯 Social Science- t.me/joinchat/GCBE5bDgFdxrZeI8 🎯 Mathematics group- t.me/joinchat/GBbG4p5S_OVRV920 ----------------------------------------------------------------------------- 🗓️ Scheduled Syllabus For Sprint ( Class 9th ) released describing which topics will be taught for how many days. Available at PhysicsWallah App :bit.ly/2SHIPW6 •Duration:-1 month (Jan 2021 - Feb 2021) 🎉 Free Batch Exclusive on our KZbin Channel : Physics Wallah Foundation - 9 & 10 •Batch Details : 1) Best Faculties across India for different Subject/Topics. 2) Complete & Relevant Syllabus Coverage of Class 9th within 1 Month - Fastrack January 4,2021- February 15,2021 3) Monday - Saturday : Scheduled Classes everyday. •Physics : Tuesday, Saturday •Chemistry : Wednesday , Friday •Mathematics : Monday, Wednesday, Friday •Biology : Wednesday , Thursday , Saturday •S.ST : Tuesday, Thursday, Saturday, Sunday 4) Scheduled Syllabus released describing which topics will be taught for how many days. Available at PhysicsWallah App :bit.ly/2SHIPW6 ----------------------------------------------------------------------------- OUR SOCIAL MEDIA PROFILES : ⭐Instagram Handle : instagram.com/physicswallah/ ⭐Facebook Page: facebook.com/physicswallah ⭐Twitter Account : twitter.com/PhysicswallahAP?s=20 ⭐ PW App on Google Play Store : bit.ly/2SHIPW6 ❤️ Padhai Karte Rahe, All The Very Best 👍
@Shubham-pb1hh
@Shubham-pb1hh 3 жыл бұрын
Sir pls clear my daubt why should we apply 150N as it is equal to the weight of the object..and we have studied balance force can never displace an obj (during 48 :20 min)
@priyanshusaini6299
@priyanshusaini6299 3 жыл бұрын
@@Shubham-pb1hh Force is only cause of Acceleration and vise versa. And this problem there is no acceleration, therefore Balance Force will be Zero.
@Shubham-pb1hh
@Shubham-pb1hh 3 жыл бұрын
Why you guys are answering incorrectly
@Harosiaslifts
@Harosiaslifts 3 жыл бұрын
150se jyada150se
@aayushsnigdh9
@aayushsnigdh9 3 жыл бұрын
@@Shubham-pb1hh u
@meghajain7892
@meghajain7892 Жыл бұрын
55:10 WD for Force 'f' fs= (-5)(10) (i.e. the force is in opposite direction of motion) W.D.= -50J WD for Force 'F' Fs= 20×10= 200J W.D.= 200J W.D. by gravity- Force= mg= 5×10= 50N F×s×costhetha= 50×10×0 (i.e. cos 90° is 0 where theta is 90°) Therefore W.D is 0J. Net work done = 200-50+0= 150J.
@bintesajeed5737
@bintesajeed5737 3 жыл бұрын
4ever favourite Sir❤️🤜🤛
@waseemraahid7937
@waseemraahid7937 3 жыл бұрын
Kon kon
@bintesajeed5737
@bintesajeed5737 3 жыл бұрын
Obviously rakshak sir💁🏻
@seemamohite2045
@seemamohite2045 3 жыл бұрын
True
@drhunt7868
@drhunt7868 3 жыл бұрын
Me too
@priyasinghrathore3646
@priyasinghrathore3646 3 жыл бұрын
Mee too
@AllinOne-gh7xd
@AllinOne-gh7xd 3 жыл бұрын
53:15 yes sir displacement is possible even though force is zero. Because In the first law of motion it is said that "every body will be in rest or in motion until and unless an external force is applied to it". Here the object is in motion so it will be in motion unless an external unbalanced force is applied to it. That means when force is 0 then also there will be displacement. Thank you.😊
@realtruth_01
@realtruth_01 2 жыл бұрын
Nice bro
@radheybadgujar1513
@radheybadgujar1513 2 жыл бұрын
Omg litreally insane
@jackup5
@jackup5 2 жыл бұрын
U are right if body is already in motion but if it is in the rest then force will only be applied on the body at rest because a/q to 3rd law of motion that body will tend to be in rest .
@Sigma_Bharat_Bhakt
@Sigma_Bharat_Bhakt 2 жыл бұрын
par usko move karvane me koi na koi force to laga hi hoga
@dhruvtrivedi4086
@dhruvtrivedi4086 2 жыл бұрын
@@Sigma_Bharat_Bhakt exactly
@shivamkushwaha9067
@shivamkushwaha9067 Жыл бұрын
Newton's 4th law : Every book continue to be in rest until and unless internal or external exam appears and speed of page turning is directly proportional to the syllabus to be covered and tension in the mind remains constant.
@Officalvegeta749
@Officalvegeta749 Жыл бұрын
Not Newton's law it's students law
@urcistianoofficial
@urcistianoofficial Жыл бұрын
Ha😂😂😂😂😂😂😂😂😂😂hahahahahahaahahahhahahahahahah
@gautam2307
@gautam2307 Жыл бұрын
Kya soch hi re teri
@samvartsrivastava3738
@samvartsrivastava3738 Жыл бұрын
Mast bhai🤣🤣
@ADILTOO100
@ADILTOO100 Жыл бұрын
@ahmadbinshakeel
@ahmadbinshakeel 3 жыл бұрын
Lecture overview - 01:20 Calculation of work - 12:55 Concept Building - 24:58 Why do we pay coolie? - 29:45 Force at an angle with the displacement - 35:40 Concept Building - 42:52 NCERT Exemplar - 44:35 NCERT Textbook question - 49:30 Challenger Question - 54:40
@Ahmad-ck2jx
@Ahmad-ck2jx 3 жыл бұрын
Thanks bro 🙏🙏
@DrAli_Ashraf
@DrAli_Ashraf 3 жыл бұрын
@@Ahmad-ck2jx Welcome 😊
@sujatapatra9654
@sujatapatra9654 2 жыл бұрын
Thanks
@angelgoswami873
@angelgoswami873 2 жыл бұрын
Khud padh liya ???
@Atulandfriends
@Atulandfriends 2 жыл бұрын
Thanku☺️
@studentsbureau
@studentsbureau 3 жыл бұрын
53:13 ➡️ ACCORDING TO 1ST LAW OF MOTION A OBJECT WILL KEEP MOVING IF THERE IS NO NET FORCE ACTING ON IT . 🔴 SO IT IS POSSIBLE THAT FORCE = 0 BUT THE OBJECT IS MOVING... PROOFED...
@arnavbopche3558
@arnavbopche3558 3 жыл бұрын
I agree
@lordrozer
@lordrozer 3 жыл бұрын
Its right
@bhavitjain7329
@bhavitjain7329 3 жыл бұрын
I also agree
@onestepthree5358
@onestepthree5358 3 жыл бұрын
True.......... Pr Jada dimag lgane wali cheez nhi h
@JEE_Memes
@JEE_Memes 3 жыл бұрын
And it is moving because friction is also not acting as newton did this experiments in frictionless surface and if friction is not there , then the object will move forever unit we apply any external unbalanced or balanced for acts upon it
@Nisun_Hansda
@Nisun_Hansda 2 жыл бұрын
Chaleger Q.2 55:09 1st Workdone Given : F=5N ; s= 10m ; cos=180°(180°=-1) WD=F.s.cos ; WD=5×10×-1=-50 J 2nd Workdone Given : F=20N ; s=10m ; cos=0°(0°=1) WD=F.s.cos ; WD=20×10×1 = 200 J 3rd Workdone Given : F=mg=5×10=50 N s=10m ; cos=90°(90°=0) WD=F.s.cos ; WD=50×10×0 = 0 J Net Workdone=( WD+WD+WD) =200+(-50)+0 J =200-50 J =150 J Ans:
@ShubhamKumar-fl1ok
@ShubhamKumar-fl1ok 2 жыл бұрын
Yess,,, my answer is also correct 😃
@Abhinavedit1538
@Abhinavedit1538 2 жыл бұрын
@@ShubhamKumar-fl1ok good mera v correct hai✌
@raushanranjan2763
@raushanranjan2763 2 жыл бұрын
mine is also correct.
@bedrock2717
@bedrock2717 Жыл бұрын
1 challenger question ka answer kya hoga.
@Mp4k11
@Mp4k11 Жыл бұрын
3rd galat he
@meghajain7892
@meghajain7892 Жыл бұрын
53:15 Let me answer this for you friends, when an object is in constant motion with no net force working on it i.e. every force working on it is balanced and cancelled, then there will be displacement without any net force working on it. So yes, it is possible for an object being displaced without a force. :)
@Poonamkothiyal2452
@Poonamkothiyal2452 Жыл бұрын
Lecture overview- 1:20 Work done - 3:22 Calculation of work - 12:55 Concept building - 24:58 Why do we pay coolie - 12:44 Force at an angle with the displacement - 35:39 Concept building - 42:51 NCERT example - 44:45 NCERT question - 49:30 Challenger question - 54:39 NEXT EPISODE - 55:19 Ye sare starting modes Hain is video ke, apko is video me uplabdh Jo bhi important topic padhne Hain wo click karke padh le
@Minato_69_
@Minato_69_ Жыл бұрын
Thanks ☺️
@moviestadka9073
@moviestadka9073 Жыл бұрын
Thanks bro
@mcreation47
@mcreation47 Жыл бұрын
Hii
@Officalvegeta749
@Officalvegeta749 Жыл бұрын
Coolie wala time galt hai
@KillamsettyAshok
@KillamsettyAshok 11 ай бұрын
Thank you soo much
@rameshwararya940
@rameshwararya940 3 жыл бұрын
Sir U have made a Sperate Fan in Students After the SPRINT batch beleive me ❤️🔥🔥🔥
@gaurav8760
@gaurav8760 3 жыл бұрын
ok... ok.....
@rameshwararya940
@rameshwararya940 3 жыл бұрын
@@gaurav8760 ok ok crying in corner w/ laughing also 😂😂
@gaurav8760
@gaurav8760 3 жыл бұрын
@@rameshwararya940 😂
@shivanshkapur4872
@shivanshkapur4872 3 жыл бұрын
Sir ne banayie aur unko hi nahi pata 😂😂😂😂
@navneetmandal9823
@navneetmandal9823 3 жыл бұрын
@@rameshwararya940 😂
@ravindraprasadsingh07
@ravindraprasadsingh07 3 жыл бұрын
18:06 points written in tricolour form
@siddhantchowdhary4016
@siddhantchowdhary4016 3 жыл бұрын
yes
@btsforever7953
@btsforever7953 Жыл бұрын
seriously sir hats off to your amazing teaching skills ... you are the reason ilove physics ... everything was crystal clear ..THANK YOU FOR THIS SESSION SIR 😊
@akashsawhney5841
@akashsawhney5841 2 жыл бұрын
I'm in 10th grade(term 2 boards are still pending). Lockdown ruined all the basics of every subject and being a IIT JEE aspirant I'm going through important chapters again and this time the clarity of the chapter is next level. All thanks to you SIR!
@ashutoshtripathi8927
@ashutoshtripathi8927 2 жыл бұрын
Kesa chal rha h sb? Mere to kal hi h exam 😂😂
@rptcreation892
@rptcreation892 2 жыл бұрын
Same me too ❤❤❤ No words for this type of awesome explanation 🔥 PW Op ❤ Rakshak sir Op 🔥
@Amar_Ghule
@Amar_Ghule 2 жыл бұрын
Same bro. Me too watching this after term 2 boards
@AbhishekM-uy5bm
@AbhishekM-uy5bm 2 жыл бұрын
samee brooo samee feellinnggsss dream IIT, BOMBAY
@akshat3693
@akshat3693 2 жыл бұрын
I am in 11th and still watching this video...because of the same reason.. iit jee aspirant...bro vaise aap kaise taiyari kar rhe ho any tips 😅
@ClashingBrawler
@ClashingBrawler 3 жыл бұрын
*Coolie* *asking* *me* *for* *payment..* Me trying to explain him that how his *workdone* *is* *0* through class 9 physics :-
@mranonymous8906
@mranonymous8906 3 жыл бұрын
😃😀😃😀😃😉😉😉
@parthivhunter9485
@parthivhunter9485 3 жыл бұрын
Then after thopi will be received on his cheeks🤣😂😂 by coolie
@achalniranjankhatri4965
@achalniranjankhatri4965 3 жыл бұрын
@@parthivhunter9485 opp
@parthivhunter9485
@parthivhunter9485 3 жыл бұрын
@@achalniranjankhatri4965 🤘🤘🤘🤘
@mannatgupta1581
@mannatgupta1581 3 жыл бұрын
अगर कुल्ली पढ़ा लिखा न nikla तो 🤣🤣🤣🤣🤣🤣🤣🤣🤣
@phoolkali249
@phoolkali249 2 жыл бұрын
Q2:Lecture overview _01:20 Calculation of work _12 :55 Concept building _24 : 58 Why do pay coolie ?_29:45 Force at an angel with the displacement _ 35:40 Concept building _42:52 NCERT example _44:35 NCERT textbook question _ 48 :30 challenger question _54:40 of professional...........??? Thanku sir so much ♥️
@shreedeep6570
@shreedeep6570 2 жыл бұрын
Nice Thank🙏
@oldsongsmemories1
@oldsongsmemories1 2 жыл бұрын
12:55 24:55 24:58
@oldsongsmemories1
@oldsongsmemories1 2 жыл бұрын
48:30
@shreedeep6570
@shreedeep6570 2 жыл бұрын
@Komu Chopra next video of this chapter part 2nd
@Shortstop7766
@Shortstop7766 2 жыл бұрын
Why do pay phool kali for this timepass comment ?_29:45
@friendlygamer4412
@friendlygamer4412 Жыл бұрын
EXAM IS NEAR 😅😅😅😅😅 NO NEED TO FEAR 😱 ,BECAUSE...😁😍😇 PHYSICS WALA IS HERE
@ShivaniKumari-lu1du
@ShivaniKumari-lu1du Жыл бұрын
Physics sir e hoga ki physics wala hoga
@murlimohan2049
@murlimohan2049 Жыл бұрын
Masti ha and right ha
@EditxVibezz
@EditxVibezz 9 ай бұрын
yr tum log sabhi channels per aisa hi likhte ho wow popular
@doligupta1601
@doligupta1601 3 жыл бұрын
Physics wallah is the best platform for studying science and maths.
@shivanshi2373
@shivanshi2373 3 жыл бұрын
yes
@pragyarajprabhakar7895
@pragyarajprabhakar7895 3 жыл бұрын
Right
@Mani-lo7yi
@Mani-lo7yi 3 жыл бұрын
History also
@anshumanbaruah
@anshumanbaruah 3 жыл бұрын
@@Mani-lo7yi I prefer BKP for English and SST
@pangigamaing4820
@pangigamaing4820 3 жыл бұрын
Social science also asim Mohammad sir
@piyushchaudhary349
@piyushchaudhary349 3 жыл бұрын
Work is done whenever a force moves something over a distance. You can calculate the energy transferred, or work done, by multiplying the force by the distance moved in the direction of the force. Energy transferred = work done = force x distance moved in the direction of the force.
@ankeshtiwari2926
@ankeshtiwari2926 Жыл бұрын
Agle janm tak work & energy ka khisa khatm ho gya sir 🤩🤩🤩🙏🙏👌👍🇮🇳🇮🇳🇮🇳
@Himanshu0997
@Himanshu0997 2 жыл бұрын
You are a best teacher of physics☺☺
@awesomegaming1462
@awesomegaming1462 2 жыл бұрын
best physics teacher to exist
@Janus_o
@Janus_o 2 жыл бұрын
Aot?
@NeelamSharma-sz9js
@NeelamSharma-sz9js 2 жыл бұрын
@@Janus_o eren Jaeger
@jyotiraghu6093
@jyotiraghu6093 Жыл бұрын
Eran Yeager
@awesomegaming1462
@awesomegaming1462 Жыл бұрын
That's my drawing guys🤡🤡
@anubhavsachan88
@anubhavsachan88 Жыл бұрын
Ereh
@Paher56
@Paher56 2 жыл бұрын
Pw has became an emotion now !!❤️
@vibhanehakumari6508
@vibhanehakumari6508 Жыл бұрын
53:32 yes if there is no unbalanced force acting on an object then it's possible for force to be 0 and displacement have some value
@edwin5656
@edwin5656 2 жыл бұрын
Revision no. 2 (for myself) 5:51 def of work 7:18 W is scalar 8:45 imp point 28:00 imp numerical
@Officalvegeta749
@Officalvegeta749 Жыл бұрын
Thanks
@sushilalahoti1163
@sushilalahoti1163 Жыл бұрын
😊
@zoyashamshad9971
@zoyashamshad9971 2 жыл бұрын
Sir school vali mam aapka name puch ri thi 😂😂(mom i am famous now )
@Krishna_das321
@Krishna_das321 2 жыл бұрын
Onko apne papa ka name ni pta?🥹
@Kaahhkashaa
@Kaahhkashaa 2 жыл бұрын
Kyun???
@zoyashamshad9971
@zoyashamshad9971 2 жыл бұрын
@@Kaahhkashaa because sir ne g value negative lene ko bola tha
@ashapatel3147
@ashapatel3147 Жыл бұрын
Meri school m toh fir famous h
@daisy234
@daisy234 Жыл бұрын
@@zoyashamshad9971 g ko negative nahi le sakte kya?
@letslearn6352
@letslearn6352 3 жыл бұрын
53:08 Yes, as we studied in force and laws of motion chapter, Force is use only to create acceleration but displacement can also be done using uniform velocity. We can imagine a cycle, if we stop peddling it for some time, then also it will keep moving in the absence of muscular force. Inshort, law of inertia cause the particle to move.
@harshhh.rathore
@harshhh.rathore 2 жыл бұрын
@Zayn Staggering how can someone be so cringe dude
@Cherry_BlossomOT7
@Cherry_BlossomOT7 2 жыл бұрын
@Zayn Staggering you are savage bro you nailed it 💯😂
@dhruvtrivedi4086
@dhruvtrivedi4086 2 жыл бұрын
nah.. this is wrong.. us still aplied force before.. well.. the q says .. can their be any s without force
@SwayamKrishnaartsandcrafts
@SwayamKrishnaartsandcrafts 2 жыл бұрын
The cycle moves due to friction without friction the cycle will be spinning at one place so force is required
@rishi7637
@rishi7637 2 жыл бұрын
Wrong answer h , inertia is the cause
@TommyBinAbdulla
@TommyBinAbdulla Ай бұрын
Yes, displacement can occur even if no force is applied on an object, but it depends on the context. In the absence of external forces, such as in the vacuum of space (with no gravity or air resistance), an object can continue to move at a constant velocity due to its inertia (as described by Newton's First Law of Motion). This means that the object can experience displacement over time without any force acting on it. However, in real-world situations, forces like gravity, friction, and air resistance are usually present, which would affect the displacement. Thus, in an idealized scenario, such as outer space with no forces acting on the object, displacement would continue indefinitely as there is no opposing force to stop it. But in practical situations, forces will generally affect the motion and displacement of an object. 53:15
@rupeshroy6276
@rupeshroy6276 3 жыл бұрын
Sir, please increase no. of challenger questions. 🙏🙏🙏🙏
@Pihu1596
@Pihu1596 3 жыл бұрын
Yes sir please .
@neerajtomar8800
@neerajtomar8800 2 жыл бұрын
Yes sir we are ready to challenge more questions .please increase the challenger questions
@prithviraj-r9f
@prithviraj-r9f 2 жыл бұрын
@@neerajtomar8800 aukut mein bol sara challenger question ko toh Google se karta h ek question denge dimag thanda ho jaayega toh batao object pae f- 67.5 s 0.0065 and tantheta par ban h angle jo ki 16.3° h slope se kitna wd hoga
@darshilpatel9587
@darshilpatel9587 2 жыл бұрын
53:16 Yes sir body can displaced without force according to inertia law . Ex-meteors moving in space.
@kxshshorts
@kxshshorts 2 жыл бұрын
Searching for this only can you clear me that earth is also moving without force
@Sharky5500
@Sharky5500 2 жыл бұрын
@@kxshshorts earth revolves around the sun due to the centripetal force acting on the earth by the sun
@kxshshorts
@kxshshorts 2 жыл бұрын
@@Sharky5500 thankyou for clearing
@parulmaurya3172
@parulmaurya3172 2 жыл бұрын
@@kxshshorts earth is by centripetal force
@migi_varun4507
@migi_varun4507 2 жыл бұрын
while showing (calculation of work) i thinks the colours he is choosing resembles our country :)
@hrishekesh_Nayal
@hrishekesh_Nayal Жыл бұрын
Yes
@nishathakur7805
@nishathakur7805 Жыл бұрын
This is when you study but you don't want to study actually
@techyandsportyboy
@techyandsportyboy Жыл бұрын
I think you came here by studying sst😂
@darshitpatel-viiigreen-9354
@darshitpatel-viiigreen-9354 Жыл бұрын
Bhai padhne ka man tha ya yahi sab notice ker raha tha
@deepikaarya4680
@deepikaarya4680 Жыл бұрын
Why were you paying attention at the colour he is using instead of paying attention to the concept 😅😅
@madhudubey9705
@madhudubey9705 10 ай бұрын
27:35 Q2. why have you not taken acceleration due to gravity in negative (-10m/s²) ?🤔
@mannatgupta1581
@mannatgupta1581 3 жыл бұрын
Sir इसका मतलब अगर कुल्ली से काम करना होगा तो हमलोग ऐसे जगह का प्रयोग कराऐंगे जिसमे सीढिया न हो ।paisa भी बचेगा 😀😀good idea sir 🙏🙏about video, I have no word for u great sir💪💪
@bhaktinathsingh428
@bhaktinathsingh428 3 жыл бұрын
53:08 According to 1st law of motion : Any object is uniform motion along distance unless acted upon by an unbalanced force
@atharvakhobragade4524
@atharvakhobragade4524 2 жыл бұрын
Ur the best sir for physics 😉
@Meerachawda-drawing
@Meerachawda-drawing Ай бұрын
Challenger question no 1. M=60kg g=9.8 F=mg F=60×-9.8 F=-588J Hypotenuse of 1 stair = h = under root 2² - 1² H = 1.73 Work done by gravity = -588 × 1.37 W= -1018.45J
@Gamingvideos-l6c
@Gamingvideos-l6c Ай бұрын
Please support me ❤❤ @Balram7714-e3f
@xyz_abhinav
@xyz_abhinav 2 жыл бұрын
Thanks sir you're a god of students who can't afford expensive fees of coachings . Boht acche se smajaya aapne😁🙏🙏
@rizwanmalik9965
@rizwanmalik9965 Жыл бұрын
You can't say him GOD
@rajput_1149
@rajput_1149 Жыл бұрын
@@rizwanmalik9965 why❓
@justinpal027
@justinpal027 2 жыл бұрын
You are my favorite sir . Sir I get scored in physics in half yearly exam 28 by 27. You are great sir 💗💗💓
@aravdixit
@aravdixit 2 жыл бұрын
Are you sparsh?
@technogamer4297
@technogamer4297 2 жыл бұрын
Congratulations yrr
@justinpal027
@justinpal027 2 жыл бұрын
@@aravdixit noooo
@lofisongsmashup.259
@lofisongsmashup.259 2 жыл бұрын
@55:16 Challenger question🙋 {2} In East direction. WD = 200J In West direction. WD = -50 J In downward direction. WD =0J
@Happyperson2132
@Happyperson2132 2 жыл бұрын
Can u explain the west direction?
@mama_bhanja_vlogs
@mama_bhanja_vlogs 2 жыл бұрын
Op bro
@pankajjain1237
@pankajjain1237 Жыл бұрын
​@@Happyperson2132bhai cos 180 degree ki value -1 hoti hai to force west mai hai or displacment east mai to 180 ka angle bana (w=f×scos180) W=5×10×-1 W=-50 Abe ye mat kahna mai 10th mai aagya
@ruhisingh1432
@ruhisingh1432 Жыл бұрын
Tq sir for explanation... Aapki sabhi baatein mujhe kaafi acche se samjh aai... And ye mujhe samjh aa gya h and next video mai kal se shuru karungi...
@neetusinghal5728
@neetusinghal5728 2 жыл бұрын
54:40 challenger question 1 Solution: gravitational force= 10×60=600N Displacement=4meter Angel btw force and displacement= 180° W=F×s×costheta W=600×4×-1= -2400J
@Secret_Soul-k4p
@Secret_Soul-k4p Ай бұрын
Can you tell me why you took the displacement =4m?
@Secret_Soul-k4p
@Secret_Soul-k4p Ай бұрын
And how it's making an angle of 180°?
@heavyshorts3332
@heavyshorts3332 26 күн бұрын
Bhai glt hai tera😂
@__heartbeat__2635
@__heartbeat__2635 2 жыл бұрын
Challenger q 2 solved Case I west side F = -5 n ( in opp side ) s= 10 m WD = (-5)(10)=-50J Case 2 East side F = 20n s= 10 m WD = (20)(10)=200J Downwards Mass=5kg g=-10n F =50(mg) Cos90⁰= 0⁰ s=10m WD = (-50)(10)(0)=0J East Side = 200J Wests side = -50J Downwards = 0 J Net WD = -50+(200) = 150 J Tysm sir
@DUTERFUNNIEST
@DUTERFUNNIEST 2 жыл бұрын
Hlo
@__heartbeat__2635
@__heartbeat__2635 2 жыл бұрын
@@DUTERFUNNIEST 👁👁yo
@arya3692
@arya3692 2 жыл бұрын
Challenger questions: 54:55 2.) In East direction, WD=200 joules In west direction , WD=-50 joules In South , WD=0 joules Net Work done is 150 joules.
@ganeshgamer9376
@ganeshgamer9376 2 жыл бұрын
You are Navodaya student?
@ganeshgamer9376
@ganeshgamer9376 2 жыл бұрын
Jawahar Navodaya vidhyalay shegaon
@itz_rai_sikh
@itz_rai_sikh Жыл бұрын
53:12 according to first law of motion , an object continues to move along a straight line path with uniform velocity unless an extended unbalanced force acts on it . Hence there can be a displacement if an object along a frictionless surface in free space.
@jaigulati2426
@jaigulati2426 2 жыл бұрын
Challenger q 2. F=200j, f=-50j, gf=0j, net workdone =150j
@AkashKumar-wz6mf
@AkashKumar-wz6mf Жыл бұрын
bro same answer aaya mera bhi
@ark23iu
@ark23iu 7 ай бұрын
Chalenger ques .1. btao, Mera to ( 1200√29 ) aaya hai
@souravop6948
@souravop6948 2 жыл бұрын
Math -MKR and ranveer class 9 Hindi and english - bkp Sst - MB (digraj singh rajput ) Science - PW and Edumantra MY PREFERENCE TO STUDY ONLINE Also comment ur preference
@raveenakalra143
@raveenakalra143 2 жыл бұрын
Just padhle for revisions
@qwertyphysics
@qwertyphysics 2 жыл бұрын
Yehi padhlio revision mein exam ke liye Notes na banaiyo
@mama_bhanja_vlogs
@mama_bhanja_vlogs 2 жыл бұрын
Ranveer maths op bolta
@Scrollwithme-b2o
@Scrollwithme-b2o 2 жыл бұрын
Yes, there can be displacement for a uniformly moving object in the absence of any force acting on it. Suppose an object is moving with constant velocity, the net force acting on it is zero but there is a displacement along the motion of the object. Hence, there can be a displacement without a force.
@akanshigautam1182
@akanshigautam1182 Жыл бұрын
Indian best physic teacher... Pw issss......... Top ❤❤❤❤❤. What a explanation.
@loddybhai1020
@loddybhai1020 3 жыл бұрын
The best teacher ❤️☺️ Pehle Barr physics ke lecture mai bore 😴 nhi hue😂
@abhaynarainsingh831
@abhaynarainsingh831 2 жыл бұрын
Q3- first law of motion states that ""If any thing is it rest it will remains at rest until and unless any external force is not applied on it"" According to first law of motion this is possible that something is in motion without any force and it will also displace by one place to another to maintain its inertia ✅✅
@dilipsinghdilipsingh6520
@dilipsinghdilipsingh6520 Жыл бұрын
Hii ❤❤😊😊 love you 😊😊😊
@anshikapandey834
@anshikapandey834 Жыл бұрын
Right
@halalguy99
@halalguy99 3 жыл бұрын
47:00 force will be same as weight of the luggage due to third the law of motion i.e every action has a equal and opposite reaction
@xaroll15nilesh86
@xaroll15nilesh86 3 жыл бұрын
Newton's 3rd law works only when force is been applied on two different object. Same object pe kaam nhi karta
@NiladriMandalVIIIB
@NiladriMandalVIIIB Жыл бұрын
Sir, when there is no force on a body there are 2 possible cases: Case 1:- We know Work = F.s = 0.s = 0 joules (BUT, THIS IS PARTLY TRUE.) Case 2:- When the object is moving with a constant velocity it applies a considerable amount of force to eliminate the opposing Force of FRICTION. Since, with the presence of a force and displacement the object performs work. Hence, Work is done. (If wrong pls COMMENT)
@AJAYKUMAR-pi6ke
@AJAYKUMAR-pi6ke Жыл бұрын
55:40
@dadupatel2882
@dadupatel2882 3 жыл бұрын
Sir we want conservation of momentum plzzz it is not cut in out syllabus plzz sir 🥺🙏🙏🙏🙏🙏🙏🙏🙏
@abhaysrivastav3618
@abhaysrivastav3618 3 жыл бұрын
Bhai flotation par video ke liye bolo
@TechGamersofficial
@TechGamersofficial 3 жыл бұрын
@@abhaysrivastav3618 Bhai density
@abhaysrivastav3618
@abhaysrivastav3618 3 жыл бұрын
Ok bhai log I will try
@mannukaushik5998
@mannukaushik5998 2 жыл бұрын
yes sir if force is zero then still object can be displaced. By law of inertia, if an object is already in motion then it will remain displacing (i.e, continue its motion) until an external unbalanced force is applied on it. Thank you sir !!!
@swarajyalenka845
@swarajyalenka845 2 жыл бұрын
No ur wrong
@herox3791
@herox3791 2 жыл бұрын
listen friend IF Force = 0 and displacement suppose 100m therefore w = f.s work done = 0 . 100 work done = 0
@swarajyalenka845
@swarajyalenka845 2 жыл бұрын
@@herox3791 Bhai Tera answer or mere reply ka koi connection nahi hai ...dekh agar woh uniform motion me hoga to iska matlab kya usko kahin se ek external force applied hua isliye to woh uniform motion me hai ..... For example voyager ko hum earth se force diye isliye woh uniform motion me hai
@anooptiwari2539
@anooptiwari2539 3 жыл бұрын
53:10,,yes sir it can be in the case of an inclined plane which has smooth surface..
@we2rider
@we2rider 3 жыл бұрын
Bhai there force of gravity and gravitational force are acting 😂
@pallab-t9r
@pallab-t9r Жыл бұрын
Sir, You are best teacher in physics ❤❤❤❤ 19:23
@anonymous-sm6sh
@anonymous-sm6sh 3 жыл бұрын
Sir is master in dancing in poonia ji lecture !! 20:50 wah wah 35:28 pakka bhagyashree maam bagal mea hogi . 47:01 barabaar 53:16 sir ek aur sasta sawaal ( poonia ji gang ) F =0N , ma =0n , a =0n , v-u =0n , v = u (assuming v is not 0) , body is moving with uniform motion hence there is displacement. Challenger question 1. 0 joule 2. (Left wali force ) W= -50J ( right wali ) W = +200 J ( niche wali ) W = 0 J NET WORK DONE = +200 -25 = 150 J
@studypoint3961
@studypoint3961 3 жыл бұрын
Hahaha
@ayushsingh9586
@ayushsingh9586 3 жыл бұрын
Left wala force -50newton hoga
@anonymous-sm6sh
@anonymous-sm6sh 3 жыл бұрын
@@ayushsingh9586 bhai w = fscos theta F = 5n S = 5m Cos180 =-1 Inko multiply karne se toh -25J aa rha hai
@anonymous-sm6sh
@anonymous-sm6sh 3 жыл бұрын
@@ayushsingh9586 are sorry mene diagram hi glt kiya tha dhyaan se dekha nhi
@Chadmohan
@Chadmohan 2 жыл бұрын
Yes , acc to first law an external unbalanced force is required to change the inertia so the object can displace if it was in inertia of motion or simply motion . Love you sir 😘
@abhay9928
@abhay9928 2 жыл бұрын
Same answer from me
@ApAnujpathak
@ApAnujpathak 2 жыл бұрын
17:00 Mai apni sister or brother ko rokne ke liye "rukja bolunga" 😂😂
@anmolchaudhary9310
@anmolchaudhary9310 Жыл бұрын
Sir I like your teaching and PW is very helpful and useful for me ❤️❤️❤️❤️🙇🙇🙇👍👍👍👍▶️▶️▶️
@rohitbeniwal1501
@rohitbeniwal1501 3 жыл бұрын
Positive work m toh......sir aapne...indian flag ke colour se likh dalA👍🥳👍🥳
@sarvatha8678
@sarvatha8678 2 жыл бұрын
*Yes. A body can keep moving with constant velocity covering certain displacement even when no force is applied on it but condition for that are :-* *1-) the body should already move on a straight path with uniform speed.* *2-) the friction force between ground and body should be 0* *3-) air resistance should be 0* *4-) direction of motion should be constant* *5-) magnitude of speed should be constant.* *●In this case when no force is applied the momentum of body will be CONSTANT*
@narenderhooda7976
@narenderhooda7976 2 жыл бұрын
Hi sarvatha I have doubt according to the formula of work done w = F . s so if we multiply 0 with any displacement it will be zero so how it is called work done :)
@hhhgfgh
@hhhgfgh 2 жыл бұрын
@@narenderhooda7976 work done is 0 sir is talking is it possible that it can keep moving without force applied on it and it's possible in space (vaccum) as no friction and air resistence is there
@gameramitofficial
@gameramitofficial Жыл бұрын
if air resistance is zero than the friction become automatically zero
@radhikaagrawal8339
@radhikaagrawal8339 2 жыл бұрын
Yes, there can be displacement for a uniformly moving object in the absence of any force acting on it
@Itzeaditer009
@Itzeaditer009 Жыл бұрын
😢😢
@JoyMandal-v2p
@JoyMandal-v2p Жыл бұрын
Hii radhika
@JoyMandal-v2p
@JoyMandal-v2p Жыл бұрын
​@@Itzeaditer009hii
@963_the_code_of_univers
@963_the_code_of_univers Жыл бұрын
53:17 Yes , Because it depends on the old inertia acting on it ... 😀
@swatishaw1351
@swatishaw1351 3 жыл бұрын
53:05 ha sir ho sakta hai kyonki newton ka law kehta hai ki ek object tab tak nhi rukegi jab tak joi external force nhi lagaye toh agar pehle se koi force uspe lagi hai aur koi aur force usse interupt nhi kar rha hai toh agar vo force nhi bhi lag rhi toh bhi vo object chal te jayega............chalte jayega..............chalte jayega.............( me to that object - abe ruke ga kab?)
@godgamer7306
@godgamer7306 2 жыл бұрын
Wow sir your teaching style is too good. And you had written the points of +ve work, tricolour that looks so amazing 😍😍😍
@studypoint3961
@studypoint3961 3 жыл бұрын
Wating For This... 🙏🙏
@praveenrajsamuel
@praveenrajsamuel Жыл бұрын
Your teaching is very nice. God bless you 👍👍👍
@latayadav450
@latayadav450 Жыл бұрын
😮😮
@pushkartiwari9328
@pushkartiwari9328 3 жыл бұрын
Sir when object is moving with uniform velocity the net force will be 0 but their would be a displacement
@tejasraj668
@tejasraj668 2 жыл бұрын
53:07 Yes, Object can be in motion even if force acting on it is 0N and it will move with constant velocity if any external un balanced force is applied it results in acceleration or retardation of the object. Also the first law of Newton states that, to change the state of motion an external unbalanced force is required. Therefore, even if no force is acting on an object it displacement is possible.
@BharatYadav-kd5tp
@BharatYadav-kd5tp 2 жыл бұрын
When a body is already moving with uniform velocity and no new net force is acting on the body, displacement occurs in the absence of force
@Jestom_official_7
@Jestom_official_7 Жыл бұрын
Exam is near 😭 Consept is not clear 🥺 No need to fear 😨 PW is here 😊 Thank you PW 🤗🙏☺️💜
@rashimehta6984
@rashimehta6984 Жыл бұрын
❤😂
@Jestom_official_7
@Jestom_official_7 Жыл бұрын
@@rashimehta6984 why you are laughing
@danger4427
@danger4427 8 ай бұрын
Wow bro good rhyming 🎉❤
@ShubhamSingh-bn6wh
@ShubhamSingh-bn6wh 2 жыл бұрын
Rakshak Sir is The Best Teacher of Physics in Whole KZbin 🙏🙏
@biologytutior6465
@biologytutior6465 3 жыл бұрын
Positive work 👉 When a force acts in the direction of the motion bof body. Negative work 👉 When a force acts opposite to direction of motion of body. Zero work 👉 When a force acts at right angles to the direction of motion of body.
@harshitkes04
@harshitkes04 2 жыл бұрын
I thought 💭 that physics is a useless and boring subject, Then i found this man 😍💖
@hackerlife007
@hackerlife007 Жыл бұрын
Bhai padh le buttering se kuch n hone wala
@madhudubey9705
@madhudubey9705 10 ай бұрын
53:06 according to me , The natural states of a body in the universe are either rest or uniform motion , so in this case , object can displace even without force .
@himanshujain6322
@himanshujain6322 3 жыл бұрын
53:12 ans if an object is moving with a constant velocity on a frictionless surface....but this is an ideal situation....do like it this is correct.
@AyushRaj-dq3tt
@AyushRaj-dq3tt 3 жыл бұрын
53:13 yes sir there is an example of a car which is moving with a uniform speed without any external unbalanced force acting on it . According to the law of inertia an object stays in its state of motion or rest until and unless an external balanced force acts on it . Therefore in this example there is no external unbalanced force acting on it but still the car is moving with an uniform speed( it means displacement is happening) BTW sir me menti quiz me 5th aaya tha toh physics wallah ka t shirt milega ki nahi?
@khushalyadav9045
@khushalyadav9045 3 жыл бұрын
nhi milega
@AyushRaj-dq3tt
@AyushRaj-dq3tt 3 жыл бұрын
@@khushalyadav9045 lol
@shivanshgupta1874
@shivanshgupta1874 3 жыл бұрын
Hello sikho only
@shivanshgupta1874
@shivanshgupta1874 3 жыл бұрын
@@khushalyadav9045 I am class 9th then l ask you what is similarity of pasitive and negative work.
@we2rider
@we2rider 3 жыл бұрын
@@shivanshgupta1874 both last with "ive"😂
@saritasingh6528
@saritasingh6528 2 жыл бұрын
Really,sir you enhance my interest in physic and now i love physic .👍👍 We proud that we have a teacher like you 💐👍👍👍🙏
@HYSHORTS501
@HYSHORTS501 9 ай бұрын
Jyada hi interest badh physics main isliye physics ko physic likh rahe ho 😅😂
@Shivamfitness99-x3s
@Shivamfitness99-x3s Жыл бұрын
Very very thanks you sir ji ❤❤❤❤ 17:02
@dechendolkar5306
@dechendolkar5306 2 жыл бұрын
I have never missed any classes You are amazing 🙏🏻
@swetabora1116
@swetabora1116 2 жыл бұрын
Thank you sir 😊
@prexoYT
@prexoYT Жыл бұрын
Sir you are the G.O.A.T of Physics for me, I have been studying from you Physics since starting of class 9 and I have scored full marks in every Unit-Test and Half-Yearly Exam. So Thank you for your such nice teaching for absolutely free ! and I am a IIT-JEE aspirant 😇.
@RitikhaDas
@RitikhaDas Жыл бұрын
Congratulations
@mistypandey6496
@mistypandey6496 2 жыл бұрын
Thank you so much sir for this session ☺️
@aditichauhan8811
@aditichauhan8811 3 жыл бұрын
Three cases of work done 1 - 150 J 2- -50 J 3- 500J Challenger question
@utkarshdeshmukh3069
@utkarshdeshmukh3069 2 жыл бұрын
AND THE NET WORK DONE IS 150 J
@piyushchaudhary349
@piyushchaudhary349 3 жыл бұрын
Work Done and Energy. To move an object, it should be transferred to energy. Transferring energy can be in the method of force. This quantity of energy transferred by the force to move an object is termed as work done.
@piyushchaudhary349
@piyushchaudhary349 3 жыл бұрын
👍🏻👍🏻👍🏻👍🏻👍🏻
@mohdrafiqdar9060
@mohdrafiqdar9060 10 ай бұрын
47:01 Answer is 225j Because work down= f ×s mg × S 150 × 1.5 = 225J
@sunnypandey1687
@sunnypandey1687 3 жыл бұрын
Nice explained you are great of physics
@kundansingh6445
@kundansingh6445 2 жыл бұрын
Best teachers PW is having the best teachers The best explanation is only over here 🤠.
@MC_GANGSTER
@MC_GANGSTER 2 жыл бұрын
4ever favourite sir😍
@justheyungunhavinquickfuse
@justheyungunhavinquickfuse 2 жыл бұрын
Copy 🤣🤣 Itni bhi bheek nhi honi chahiye like ki
@Salman.Parvez
@Salman.Parvez Жыл бұрын
@@justheyungunhavinquickfuse 🤣😂😂
@laddugopal8083
@laddugopal8083 Жыл бұрын
47:02 Applied force gravitational force se jada hoga kyuki agar dono forces equal honge toh wo object lift hi nhi ho payega.
@akshatbharakatia9282
@akshatbharakatia9282 3 жыл бұрын
When a body perform uniform motion the forces acting on it are balanced while as he is moving in straight line there is some displacment
@lofishorts2606
@lofishorts2606 3 жыл бұрын
Sir this is veri important lesson part
@powerofpositivethoughts3188
@powerofpositivethoughts3188 3 жыл бұрын
Thank u sir , so sweet lecture sir , and very imp also thank u so much sir , we love you sir❤️
@Indianidol4564
@Indianidol4564 10 ай бұрын
🥳🔥 the level of energy with which you teach is superb....Super energetic...
@DeepGraphics06
@DeepGraphics06 Жыл бұрын
47:37 Sir I have a doubt, if we apply 150 Newton upward force on the object which is equal to the gravitational force(150N), then it will create a balanced force, and the object will remain in it's rest position and cannot be lifted upward.
@aishwarya.12v
@aishwarya.12v Жыл бұрын
it's because of newton's first law of motion
@Bababoi1133
@Bababoi1133 Жыл бұрын
​@@aishwarya.12v are u ret#rded?
@Programmer07
@Programmer07 3 жыл бұрын
He is the best Teacher of Physics...🌟🌟
@janhavirout4286
@janhavirout4286 3 жыл бұрын
beautifully explained...thank you very much, sir.
@onkarlaldevara8020
@onkarlaldevara8020 5 ай бұрын
53:08 Sir motion in vacuum/space and motion on any frictionless area(space) or new fastest methord of travelling (underground railway without friction)
@fact-psychology-c5f
@fact-psychology-c5f Жыл бұрын
Sir aapka video dekhne ke badd ye feel hota hai ki koi agar bole bhi ki isko bhul ki dikhauoo to sayad nhi bhul payege😅😅😅😂
@rajeshkumarran7053
@rajeshkumarran7053 4 күн бұрын
Yrr kuch Jada ho gaya broo😂😂
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