Work and Energy 04 | Numerical Practice Session | Class 9 | NCERT | Sprint

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Physics Wallah Foundation

Physics Wallah Foundation

Күн бұрын

Пікірлер
@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 👍
@creature3d249
@creature3d249 3 жыл бұрын
Sir plz sound chapter par bhi lecture layiye🙄 We are waiting Plz plz plz...........infinite
@samiullah2732
@samiullah2732 3 жыл бұрын
Sir i sayed to u that there are no more lectures of u
@samiullah2732
@samiullah2732 3 жыл бұрын
Iam from pakistan so near with afghanistan
@PrabhatKumar-be2le
@PrabhatKumar-be2le 3 жыл бұрын
Sir sound ch hoga 🙏🙏🙏🙏🙏
@kanchansoni8083
@kanchansoni8083 3 жыл бұрын
Sir PW app par lecture notes nahi mil rahe hai sir please 🙏🙏 help me out.....
@Ayanshs516
@Ayanshs516 3 жыл бұрын
The best thing I like on this channel is that they teach on a black_board due to which I can study for hours and it does not affect my eyes.❤️..in other channels the board is white and I get headache after looking at the screen for too long..THANKS PHYSICS WALLAH FOUNDATION
@ProductionEE
@ProductionEE 3 жыл бұрын
Bro Its Not blackboard 😂
@ProductionEE
@ProductionEE 3 жыл бұрын
@@kapoor7306 why are you abusing
@kapoor7306
@kapoor7306 3 жыл бұрын
@@ProductionEE chl nikal yaha se pehli fursat me😂
@kapoor7306
@kapoor7306 3 жыл бұрын
Ka e babu
@ProductionEE
@ProductionEE 3 жыл бұрын
@@kapoor7306 achha but kyu niklu bhai batao
@Bgmi_wala3656
@Bgmi_wala3656 2 жыл бұрын
Sir school 🏫 wali madam aapka number mang rahi thi 😂😅📱 Thnx for 500 likes🫶 Subscribe for more amazing jokes😂👍
@krishyadav_08
@krishyadav_08 Жыл бұрын
To de do
@krishyadav_08
@krishyadav_08 Жыл бұрын
Gf Banna hoga 😅😅
@princeg9991
@princeg9991 Жыл бұрын
Sarr ki life set hai 😊
@Swatinain250
@Swatinain250 Жыл бұрын
❤❤
@KishanNandi-h7u
@KishanNandi-h7u Жыл бұрын
Setting kar Raha ha 😎👌
@brajeshpal7756
@brajeshpal7756 3 жыл бұрын
Most brilliant teacher of physic🙄❤️❤️❤️
@parthaojah9109
@parthaojah9109 3 жыл бұрын
No doubt
@shivanshraikwar7358
@shivanshraikwar7358 3 жыл бұрын
Agreed
@RaviYadav-no6nx
@RaviYadav-no6nx 3 жыл бұрын
Sach me yar
@rockstar892
@rockstar892 2 жыл бұрын
Yeh koi kehne Wali baat hai He is best teacher
@ayushi_singh118
@ayushi_singh118 10 ай бұрын
😂
@xd3835
@xd3835 Жыл бұрын
8:15 , sir if you had taken 10m/s (5*2) in the first part which asked for KE when v was doubled then you could've taken 15m/s (5*3) in the second part of the question as well. You have used two different concepts in the same question.
@simran_visuals
@simran_visuals Жыл бұрын
Yes , ur right !
@TECH-SUBHU
@TECH-SUBHU 11 ай бұрын
Yes , same i was thinking that
@bruhamit
@bruhamit 10 ай бұрын
Bhai ye teachers log jab questions solve krte hai to nervousness me Inka bhi answer galat ho jata hai
@monikakaushik4372
@monikakaushik4372 6 ай бұрын
Qsn me given h incresdt it mns apko 1st velocity (5) me 3 times velocity ko inc karke add Krna h so 5×3=15 and 15+5= 20😊
@amitbarannayak7751
@amitbarannayak7751 Жыл бұрын
16:41 Chalo lines complete karte hain Suniye to Rukiye to Arre kyun hai khafa Aisi kya jaldi jaane ki Ohhhhoooo
@nayangupt
@nayangupt 3 жыл бұрын
Sir It was my exam today and the exam is very easy thank you alot..🥰
@BCCCUBER
@BCCCUBER 2 жыл бұрын
7:35 it's wrong when velocity is tripled KE= ½m(3v)² Ke=½(2)(3×5)² Ke=(15)² KE=225 Joule
@iayt2284
@iayt2284 2 жыл бұрын
Bruh! Velocity isn't tripled,it is increased by triple,it means 3V is added in previous velocity,i.e [5+3V] Putting in ∆ K.E. M/2[ (v)^2 - (u)^2] i.e, 2/2[ (5+3V)^2 - (0)^2] J 2/2[ (5+3×5)^2 - (0)^2] J 2/2[ 400-0] J 400 J
@foodiezagg5698
@foodiezagg5698 4 ай бұрын
​@@iayt2284😅
@behindhim
@behindhim 3 ай бұрын
​@@iayt2284aayein?
@Riya.0057
@Riya.0057 Ай бұрын
Nahi bhai
@animeshorts138
@animeshorts138 Ай бұрын
Lecture ke dauran ​Sone Wale bacche 😐😑
@tdmaster9965
@tdmaster9965 3 жыл бұрын
8:02 sir K.E. of the object = 25 J Velocity of the object = 5 m/s K.E = 1/2mv2 m = 2×K.Ev2 m = 2×25/25= 2 kg If the velocity is double, v=2×5= 10m/s Therefor K.E (for v = 10 m/s) = 1/2m2 =12×2x100=100J If the velocity is tripled, v=3×5 = 15 m/s Therefor K.E ( for v = 10 m/s) = 1/2mv2 = 1/2×2x225=225J
@db_2408
@db_2408 2 жыл бұрын
I also got 225 J. Sir did a calculation mistake. He multiplied 5x4 instead of 5x3.
@jackup5
@jackup5 2 жыл бұрын
Sir is right because .....it was mentioned in the question that if the velocity is "doubled" and next one was ' velocity is "increased" triple'. Hope u understood but even u face any problem, go to 7:22 and listen him carefully.
@niranjanbiswajith9482
@niranjanbiswajith9482 2 жыл бұрын
u are crect
@niranjanbiswajith9482
@niranjanbiswajith9482 2 жыл бұрын
@@jackup5 how will we get 20 if 5 is multiplied 3 times
@jackup5
@jackup5 2 жыл бұрын
@@niranjanbiswajith9482 not only 5 is multiplied into 3.....but it is also increased....means 5+(5×3) understood???? Go to 7:20
@ANIMEVERSE6655
@ANIMEVERSE6655 2 жыл бұрын
42:55 best moment "Are waah kuch to solve karne layak hai yaha"
@rishikasethi6495
@rishikasethi6495 2 жыл бұрын
sir in Q3 ans for velocity increased by 3 times will be 225 J and not 400 J. as they have said 3 times which means 5x3 = 15
@kavyanavyashow4644
@kavyanavyashow4644 2 жыл бұрын
I was confused about it too... I thought i was the only one who got it wrong...thanks to your comment 😂❤️
@adityapandey7674
@adityapandey7674 2 жыл бұрын
@@Allinone-cm5rc kaun sa nasha kiye ho hume bhi batao zara
@SarojSingh-vl2kj
@SarojSingh-vl2kj 2 жыл бұрын
@@Allinone-cm5rc yes ur correct
@SarojSingh-vl2kj
@SarojSingh-vl2kj 2 жыл бұрын
@@kavyanavyashow4644 no ans is 400 only it's increased by 3 times
@hegxer_editssubscribtions4545
@hegxer_editssubscribtions4545 2 жыл бұрын
Yup exactly
@pardhanplaz3501
@pardhanplaz3501 3 жыл бұрын
Starting 🤣🤣helloooooooooooooo bachoooooooooooooooooooo😩😂😂😂
@ArshDeepSingh-l6s3f
@ArshDeepSingh-l6s3f 11 ай бұрын
Hellooooooooooooooooooooooooooooooooooooooooooo bachooooooooo😂😂
@AnaghMishra-tf2zl
@AnaghMishra-tf2zl 6 ай бұрын
Helloooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo Bachooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
@Shysloth
@Shysloth Ай бұрын
Starting😎 Ending🤡
@Pushpa_Singh-1992
@Pushpa_Singh-1992 24 күн бұрын
It makes an awkward moment 😕😕😕😕
@krishan69029
@krishan69029 Күн бұрын
Heloooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
@aakarshsrivastava1579
@aakarshsrivastava1579 Жыл бұрын
43:39 to 43:43 the line is the best line for a physics lover.
@lanlantopgamer4674
@lanlantopgamer4674 Жыл бұрын
0:01 hallow bachooooo
@ananyaguptavlogs2861
@ananyaguptavlogs2861 2 жыл бұрын
I wanted this type of teacher for past so many months....... Ahh... Super thanks for teaching me .if who think I can't solve u can do it bcz if I can do nobody can do.... 🙂🙂
@chhayakatendra5267
@chhayakatendra5267 Жыл бұрын
How much you got in class 9 physics
@shaifali6737
@shaifali6737 Жыл бұрын
In last solution, ita = nothing in , everything is out
@shaifali6737
@shaifali6737 Жыл бұрын
Out of mind 😂😂😂
@AdityaSrivastavaE
@AdityaSrivastavaE 3 жыл бұрын
Sir Please make lectures on Sound , as we need them for Olympiads ... 🎖️🎖️
@dhruvsharmatech9376
@dhruvsharmatech9376 3 жыл бұрын
Ooooo
@saurav8272
@saurav8272 2 жыл бұрын
Oo
@Ind-VIDENCEPvtLtd
@Ind-VIDENCEPvtLtd Жыл бұрын
O
@mohitmaheshwari3727
@mohitmaheshwari3727 Жыл бұрын
Ooo oooo ooo oooo ooo oooo ooo oooo ooo
@laxmigaur7993
@laxmigaur7993 10 ай бұрын
Yes sir please make some more numericals on this.....
@vansh_1090
@vansh_1090 2 жыл бұрын
Thanks sir ! This chapter is now piece of cake for me :)
@priyankagrover5557
@priyankagrover5557 2 жыл бұрын
Í Øhhhh
@chhayakatendra5267
@chhayakatendra5267 Жыл бұрын
For me it is whole cake cause this ch seems very easy after watching sir's lecture and I like cake so... 😂😂😂
@AKGAMING-vy4id
@AKGAMING-vy4id Жыл бұрын
P.w thanks sir
@AKGAMING-vy4id
@AKGAMING-vy4id Жыл бұрын
😅🤣😅😇😍🤩🥰🤯🤠🥳🤬😡😠😈😤😭
@bgmiop6803
@bgmiop6803 Жыл бұрын
@@chhayakatendra5267 full komedy
@aditikumari8657
@aditikumari8657 2 жыл бұрын
You are a very good 👍 teacher for physics ☺️☺️ sir
@itz_amit_xvii
@itz_amit_xvii 2 жыл бұрын
Hm
@Kingofallfunnyvideo
@Kingofallfunnyvideo Жыл бұрын
Hi
@prachisharma9289
@prachisharma9289 2 жыл бұрын
In third question answer of three times of velocity will be 225 J not 400 J. Love you PW platform
@jauharaftab2935
@jauharaftab2935 2 жыл бұрын
thanks for always being there. u make every thing look easier, to be super honest u r one of the best ever. EAST OR WEST, PW IS THE BEST.
@icc6780
@icc6780 2 жыл бұрын
Sach mein kya
@sterlinglifescience9520
@sterlinglifescience9520 Жыл бұрын
Aftab Bhai app kha se ho
@Rohitsingh_16
@Rohitsingh_16 Жыл бұрын
I've studied first four physics chapters of 9th ncert for my cds exam from you. Now I'm able to solved all previous year questions of physics cds. A big thanks I am sure on this cds 2 2023 I will do all question of physics 9th ncert. 🎉
@sakshitiwari3456
@sakshitiwari3456 Жыл бұрын
Funny hogua
@hariramjat8769
@hariramjat8769 2 жыл бұрын
05:23 sir answer is Hence, when the velocity is doubled its kinetic energy is 100J and when the velocity is increased three times its kinetic energy is 225J.
@shambhusharansingh3150
@shambhusharansingh3150 2 жыл бұрын
Ha
@NaveenKumar-cg3oi
@NaveenKumar-cg3oi 2 жыл бұрын
Yeah 😊
@princevarshney2131
@princevarshney2131 2 жыл бұрын
Right[velocity three time increase hogi to 15 ayaga]
@rockstar892
@rockstar892 2 жыл бұрын
Hmm
@swastiktiwari75
@swastiktiwari75 Жыл бұрын
*I recommend everyone who is doing full revision of physics to start revision of topics from this chapter because this seems to be pretty easy and simple to understand with a bit of practice of numercials and understanding concepts.*
@umking1952
@umking1952 3 жыл бұрын
My favorite lecture session because theory are available in many plateform but this type of numerical practice is done only here
@rushilg5679
@rushilg5679 2 жыл бұрын
who asked
@rushilg5679
@rushilg5679 2 жыл бұрын
@Aarya Suparey nahi degi
@meharbano5653
@meharbano5653 3 жыл бұрын
Thank you so much sir...amazing teaching skill🙌
@rptcreation892
@rptcreation892 2 жыл бұрын
Rakshak Sir Op ❤❤❤ Awesome explanation 😍😍😍
@ananyaguptavlogs2861
@ananyaguptavlogs2861 2 жыл бұрын
I have passed my exam and it well so good...... Thanks to all the three teachers 🥰
@sh1ko_ae
@sh1ko_ae 2 жыл бұрын
Pass krna hi important nhi Hota achhe marks laane se Hota hai
@rushilg5679
@rushilg5679 2 жыл бұрын
who asked
@ananyaguptavlogs2861
@ananyaguptavlogs2861 2 жыл бұрын
@@sh1ko_ae abee pass matlab ho chuka h
@ananyaguptavlogs2861
@ananyaguptavlogs2861 2 жыл бұрын
@@rushilg5679 who said to read😑
@hireshdevi9733
@hireshdevi9733 2 жыл бұрын
One of the best teacher in class 9 physics by pw 🙃
@kshitijghate6895
@kshitijghate6895 3 жыл бұрын
13:27 was my favorite part ever.
@gautamchoubey1275
@gautamchoubey1275 3 жыл бұрын
My also bro 😂😂
@nidhidubey6606
@nidhidubey6606 Жыл бұрын
same here.....
@nidhireddy2978
@nidhireddy2978 3 жыл бұрын
25:32 Ballu haar gayi Allu jeet gayi 👌🏻👌🏻😂😂😂😂😂
@pearl_yyy
@pearl_yyy 3 жыл бұрын
Sir tusi great ho bohot badhiya padha rhe ho sir we r so lucky to have study with such a huge nd perfect platform i am so thankful to all pw team❤️
@impostergaming5406
@impostergaming5406 11 ай бұрын
14:23 sir confused😂😂😂 and said "tum karlena bohot acha ans aayega
@AsrarBhat191
@AsrarBhat191 3 ай бұрын
😂😂
@AsrarBhat191
@AsrarBhat191 3 ай бұрын
Sahi khe 😂
@moltiagaming
@moltiagaming 11 ай бұрын
Mera hogya hai dimag kharab bhai puri video dekh ke questions solv kar liye but at last mene dekha class 9 ke questions hai aur me 11 me 😅😂
@twobrothergamer8537
@twobrothergamer8537 10 ай бұрын
Lol😂🎉
@KushalKumar-v1i
@KushalKumar-v1i Ай бұрын
😂😂wah bhai
@vixz_editzz
@vixz_editzz Ай бұрын
shabash bro
@moumitadas1046
@moumitadas1046 Ай бұрын
Wabash bhaiya 😂
@sanjana5706
@sanjana5706 3 жыл бұрын
26:44 "shuru kree" Mayo japan 😁 I know
@Pragati_23
@Pragati_23 3 жыл бұрын
Me too😁😁
@jayneelkhandelwal4508
@jayneelkhandelwal4508 3 жыл бұрын
Good sir best sir Zindabad physics wallah.
@pranavdwivedi3527
@pranavdwivedi3527 2 жыл бұрын
Challengeer questions answer is 658235kg . ( Caution - in this question while calculating last question numerical no brain was harmed use of calculator is strictly necessary in that)
@ahanachanda7221
@ahanachanda7221 Жыл бұрын
i did it all using my own brain and still got the right answer🙂
@pranavdwivedi3527
@pranavdwivedi3527 Жыл бұрын
@@ahanachanda7221 you are human calculator
@divyanshigupta131
@divyanshigupta131 2 жыл бұрын
Sir kya gate hai aap wah 👍👍😂😂😂😂 16:40
@pransu1579
@pransu1579 2 жыл бұрын
These numericals will be really very helpful for my upcoming Science Annual Examinations
@VaishnaviSingh-xi8yn
@VaishnaviSingh-xi8yn Ай бұрын
11:10 why there is a minus sign in work done, although it is a scalar quantity.😢
@Notpaawan3
@Notpaawan3 Ай бұрын
Plus AYEGA
@Gamingstar1795
@Gamingstar1795 Ай бұрын
Minus ayega kyoki object retardation kar raha hai
@AnkitSingh-hv4hc
@AnkitSingh-hv4hc 3 жыл бұрын
Amazing person I have seen in my life 💖🎈
@anmolkatoch9274
@anmolkatoch9274 2 жыл бұрын
31:53 answer is 3750 watt
@बाबुलालबाबूजी-ष9थ
@बाबुलालबाबूजी-ष9थ 3 жыл бұрын
Sir you are the best teacher of physics. You are the god who save me. 🤗💯
@kishankumarsinha6167
@kishankumarsinha6167 2 жыл бұрын
I love your teaching style like no one can do it wow wow
@pratiksharma9895
@pratiksharma9895 2 жыл бұрын
Sir I get 99 percent in my final exam thank you sir for your support 😊😊
@beastboyfaiz1196
@beastboyfaiz1196 Жыл бұрын
How
@pratiksharma9895
@pratiksharma9895 Жыл бұрын
Hlo bro firstly apko apna self notes bana hai aur pw sai hi padh lai aur ncert bana lai aur revision bar bar kar baas kafi hai ​@@beastboyfaiz1196
@shaghgamer5762
@shaghgamer5762 Жыл бұрын
7:40 Sir increased three times ka matlab to 15 hi hai 20 nahi dikha raha hai.
@GuptaFacts007
@GuptaFacts007 10 ай бұрын
Sir apne q no 3. Me part 2 three times increase nahi jod diya hai Galat hai answer 225 Joules hoga
@poojaranisahoo6777
@poojaranisahoo6777 2 жыл бұрын
16:41 Waaah! Waah! Waaah! Wah! 😂🤞🏾
@puneetkumar1625
@puneetkumar1625 2 жыл бұрын
Tomorrow is my exam and I was not clear with lots of concepts but after this vedio I am Fully ready to score good marks. thanks sir
@fakebedo_op4765
@fakebedo_op4765 2 жыл бұрын
Thoda marks batana kitne mile science mai and be honest 🤬
@sh1ko_ae
@sh1ko_ae 2 жыл бұрын
@@fakebedo_op4765 whi toh! Ek din phle padhta hai aur woh bhi bol rha hai ki concept bhi nhi pta thaa bsdk. Ek din phle padh ke ghanta marks aayenge
@Prince-vk5ho
@Prince-vk5ho Жыл бұрын
challanger ques 1----900 * 10^6 joules
@anonymous-sm6sh
@anonymous-sm6sh 3 жыл бұрын
16:45 😂😂 40:30 10:06 - 210 J
@curositygotech5064
@curositygotech5064 Жыл бұрын
5:03 *Me confused with 120J till he turned back to correct it*
@niyatii12
@niyatii12 2 жыл бұрын
Sir you have read very well😊and I understand very well😄😄thank you for this...now I will read for your own channel...thank you so much sir...🌸🌼
@tanujabudhori
@tanujabudhori 3 жыл бұрын
Sir it is actually 1960J at 16:59
@programerz3224
@programerz3224 3 жыл бұрын
Q.12 if he is on earth then his mass is 50 so weight is 50×10=500N P=W/T P=f.s/T P=500×6.75/0.0025 P=1350000
@pokegamer4403
@pokegamer4403 2 жыл бұрын
Time is 9 second not 0.0025 hr
@programerz3224
@programerz3224 2 жыл бұрын
@@pokegamer4403 9second hour=0.0025 hour!
@pokegamer4403
@pokegamer4403 2 жыл бұрын
@@programerz3224 we have to go with si unit which is watt and 1 watt means 1 joule of work done in 1 sec
@programerz3224
@programerz3224 2 жыл бұрын
You can't understand
@SaradamaniBhattacharjee-px1eg
@SaradamaniBhattacharjee-px1eg Жыл бұрын
Sir third wala 5×3 = 15 hoga because it says that it should be three times 8:25
@Abhinavkumar_
@Abhinavkumar_ 3 жыл бұрын
Sir Question No. 3 ka third part samjh nahi aya ki wo kese hua ?? 7:33 wala part
@P.J_
@P.J_ 3 жыл бұрын
See waha pe kha hai ki phele double ka to ham ne 5+5= 10m/s right? Then uske baad hai ki three time yaha pe ye nhi likha ki vo *tripled hai* yaha pe likha hai three times hai , agar yaha pe tripled hota to ham karte 5+5+5= 15m/s but it's three times to hoga 5+5=10 then 10+10=20m/s agar yaha pe 4 times hota to same hi hai vo hota 5+5=10 10+10=20 20+20=40 , that's it I hope that this will be helpful for you !
@Abhinavkumar_
@Abhinavkumar_ 3 жыл бұрын
@@P.J_ thanks
@P.J_
@P.J_ 3 жыл бұрын
@@Abhinavkumar_ your welcome :)
@P.J_
@P.J_ 3 жыл бұрын
@@Abhinavkumar_ are sach mein ... Wow i am also an ARMY !!!! I am happy that i help an army 💜💜 purple u
@HarshitSaini-j4b
@HarshitSaini-j4b Ай бұрын
Best teacher ever ❤❤❤
@NotMayankMaurya
@NotMayankMaurya Ай бұрын
👁️⃤
@dalibhakhar148
@dalibhakhar148 3 жыл бұрын
It really helped me a lot💜
@921tisha7
@921tisha7 11 ай бұрын
Sir Ap bohot hamdsome ho or smart bhi
@shivbhalake2751
@shivbhalake2751 3 жыл бұрын
Sir main Maharashtra board Se hu muzhe foundation Karna hain Sir muzhe physics interesting lag rahi hain because of you Thanks sir
@kavitamishra7728
@kavitamishra7728 3 жыл бұрын
Sir trust ,pressure, up thrust, density, relative density and force exerted by liquid karwa do sir plssssssssss
@ramandas6602
@ramandas6602 3 жыл бұрын
Ek video hai espe Jake dekho
@aaquibkhan1612
@aaquibkhan1612 3 жыл бұрын
sir , you teach really very great
@Sammyyyyyyyyyyyy
@Sammyyyyyyyyyyyy Жыл бұрын
8:20 sir here when the velocity will be increased by 3 times, the kinetic energy will be 225 J and not 400 J
@almas003
@almas003 Жыл бұрын
It's not said that the velocity became thrice it's said that the velocity is increased three times that's why it will be 400J
@Sammyyyyyyyyyyyy
@Sammyyyyyyyyyyyy Жыл бұрын
@@almas003 You can check the answer in google, it says that the velocity will be 225 J Since; mass= 2 (already found) and velocity= 15 (the velocity is increased three times, the v given in the question was 5. But when it is increased by 3 times it becomes 15 as 5x3= 15) the formula to calculate K.E is 1/2 x m x v^2 So, as we put these values in the formula. K.E= 1/2 x 2 x (15)^2 = (15)^2 = 225 J Therefore, it was just a mistake made in the video.
@Ankurnarula-vachaan
@Ankurnarula-vachaan Жыл бұрын
This man proves physics is not boring
@rolird624
@rolird624 Жыл бұрын
Yes
@nafisahossaini.7456
@nafisahossaini.7456 Жыл бұрын
Ha boring nhi hard hai physics.
@scienceandtechnology8514
@scienceandtechnology8514 2 жыл бұрын
Thanku so much sir💟💟💟💟💟
@ashishop4257
@ashishop4257 3 жыл бұрын
7:57 iska ans 225J h 400 J nahi
@rizulsaini8128
@rizulsaini8128 3 жыл бұрын
sir ne velocity 4 times kar di thi par question mei likha tha ki velocity 3 times karni hai
@Sparrowyt150
@Sparrowyt150 Жыл бұрын
Sahi hai 400J mahashae
@ankushtantuway6988
@ankushtantuway6988 2 жыл бұрын
Thank you sir aap se padke poora samajh aaj ata hai mere sir kuch nahi padhate hai thank you physics wallah foundation thanks a lot sir ❤❤❤❤❤❤❤
@sushilapoonia3946
@sushilapoonia3946 2 жыл бұрын
Thank you sir now my all doubts are clear
@taslimasultana1307
@taslimasultana1307 2 жыл бұрын
Sir question no 3 3 times increased in velocity means 3×5 =15 and (15)² =225 it's correct answer is 225 Thank You Sir 😊 🙏
@rajashrimahanta9314
@rajashrimahanta9314 Жыл бұрын
Sir ..why we take the .g .as possitive in workdone ...
@Adityasi71
@Adityasi71 Жыл бұрын
😅 yes I am also confused 🤔
@hkmathematicsclasses2037
@hkmathematicsclasses2037 3 жыл бұрын
You are the best teacher in world
@tanveerraza2026
@tanveerraza2026 Жыл бұрын
Sir in. Question number 3 the velocity will be thrice so, the value of velocity will be 15 and the kinetic energy is 225 J. (It is given in S.Chand side book)
@pradeepbajaj717
@pradeepbajaj717 3 жыл бұрын
Sir In q 3 can we write that KE will be 1\2 times of 25 J
@enderman5432
@enderman5432 2 жыл бұрын
7:43 sir here the velocity will be 15 because it is tripled not 20
@abdulkadirmalik1640
@abdulkadirmalik1640 Жыл бұрын
You are right 😊
@SanjaySharma-dh3fr
@SanjaySharma-dh3fr 3 жыл бұрын
Sir class 9 ki menti quiz kar lo plz🙏🙏
@tappukepapa4984
@tappukepapa4984 3 жыл бұрын
yeesss sir plz kyunki Class 9 ka 80% students ke exam 1st ya 2nd week ke Mar mai Hai
@vaishnavisingh6654
@vaishnavisingh6654 3 жыл бұрын
@@tappukepapa4984 ha 1st March se
@parishisharma9465
@parishisharma9465 2 жыл бұрын
Sir, in gravitation, we took acceleration due to gravity's value -10 in each case, then how can we take its value 10 here?However the gravitational force acts downwards everytime...
@wasteland3000
@wasteland3000 2 жыл бұрын
same doubt man
@parishisharma9465
@parishisharma9465 2 жыл бұрын
@@wasteland3000 He's not answering...😔
@lavanya.2257
@lavanya.2257 2 жыл бұрын
i guess it is because in most the cases we are putting force in an upward direction but with same mg only that is why mg is + not - . since the force applied is by US and not GRAVITY
@Faizullah_Editz
@Faizullah_Editz Жыл бұрын
Bro its depend on you what you take the value of accleleration due to gravity u take downward positive or negative its completely depend on you...
@sujuThepuju
@sujuThepuju Жыл бұрын
My opinion: While falling : positive gravitational acceleration While lifting or pulling upward: Negative gravitational acceleration And yeah the value taken shall be 9.8 but to make the calculation simpler, many question have it as 10ms-2
@LuckySingh-yh5mx
@LuckySingh-yh5mx 2 жыл бұрын
Sir , with the help of my mind I find ans.of last ques. It is .. m - 5.59(10⁷) kg Thanks a lot sir for teaching too much good
@deepaksharma-gp5de
@deepaksharma-gp5de 3 жыл бұрын
Sir Q.5 Ans is 208333.3
@HELIOS677
@HELIOS677 3 жыл бұрын
But how?
@Hasanartist0
@Hasanartist0 Ай бұрын
Bhai 625 divide by 3 208.3 kaise?
@FaizImam7
@FaizImam7 2 жыл бұрын
Sir 11:15 question number 4 ka answer negative main nahi positive main hai sir 🙂
@02d4rk2
@02d4rk2 2 жыл бұрын
but wo toh retard hora hai na?
@manjurani6859
@manjurani6859 2 жыл бұрын
Sir your speaking style is amazing 😎 Loved the session 😁☺️
@criticalxff2594
@criticalxff2594 11 ай бұрын
5:09 balako!!!! Beast boy ke yaad dila de
@pratimsaha7684
@pratimsaha7684 2 жыл бұрын
thank you sir for making physics so much interesting .. i really appreciate your efforts from the core of my heart.. really you are my idol... if someday u see my comment please give a reply.. it will make my day...
@rockstar892
@rockstar892 2 жыл бұрын
Same with me
@diztugamer490
@diztugamer490 3 жыл бұрын
Sir appki aur PW education se mere ko physics me interested aaye
@peace_pulse_09
@peace_pulse_09 3 жыл бұрын
Sir:- to shuru karein? Me :- to chaliye shuru karte hain 26:42
@ANIMEVERSE6655
@ANIMEVERSE6655 2 жыл бұрын
43:00 mass of water approximately 645×10³
@pihu09817
@pihu09817 3 жыл бұрын
Sir lectures for sound also .🙏 Please ,please, please 🥺🥺🥺
@rajnish6414
@rajnish6414 3 жыл бұрын
Yes sir
@kritikasharma9463
@kritikasharma9463 Ай бұрын
24:07 wah!!! 🤣🤣🤣🤣🤣🤣🤣🤣moj krdi
@adityaprakash4745
@adityaprakash4745 3 жыл бұрын
Sound Chapter pls
@dheeraj_singh_rajput
@dheeraj_singh_rajput Жыл бұрын
Very best sir you explain,👍👍👍👍
@creature3d249
@creature3d249 3 жыл бұрын
Awesome sir my all doubt are cleared Thankyou so much Rakshak sir Love u sir so much 😊🙂🙂
@suryashukla4036
@suryashukla4036 2 жыл бұрын
11:14 negative nahi positive aayega
@lightforce1935
@lightforce1935 2 жыл бұрын
Chal negative hai
@supriya_3125
@supriya_3125 3 жыл бұрын
Wht I say about uh sir...🤭I have literally no words for ur amazing explanation.🤩....u r really a geniussssss🙏🤗.......I lv ur way of teaching....😉
@syednaqvi2340
@syednaqvi2340 3 жыл бұрын
True 👌🏻
@tannu5548
@tannu5548 2 жыл бұрын
Hey supriya you know me 😁😁😁😁😅😅😁😅
@syednaqvi2340
@syednaqvi2340 2 жыл бұрын
@@tannu5548 no I don’t know u😂
@syednaqvi2340
@syednaqvi2340 2 жыл бұрын
@@tannu5548 I know😄
@tannu5548
@tannu5548 2 жыл бұрын
@@syednaqvi2340 ohkk
@meditationwithmotivation4764
@meditationwithmotivation4764 2 жыл бұрын
Thank you so much for the ncert question
@justeenaahlad6217
@justeenaahlad6217 2 жыл бұрын
Appreciatable work!!! 💫💕
@ayushchauhan7566
@ayushchauhan7566 2 жыл бұрын
Question number 3 3part answer K. E=225
@ayushchauhan7566
@ayushchauhan7566 2 жыл бұрын
Yes sir
@Aestheticyouandme43
@Aestheticyouandme43 11 ай бұрын
37:27 itaasur 😂😅
@shubhamkori5842
@shubhamkori5842 3 жыл бұрын
Best teacher ❤
@malikrinku5
@malikrinku5 2 жыл бұрын
Sir I am Ankit Yadav from bidfaram sir I solve maximum numerical s
@inspectme_7
@inspectme_7 2 жыл бұрын
Thank you sir Such a nice session ❤️
@-prashant
@-prashant 2 жыл бұрын
13:46 taisooo
@FfKNIGHT284
@FfKNIGHT284 Ай бұрын
😂😂not taisoo , dhaisoo...❤❤
@danec955
@danec955 2 жыл бұрын
Helo sir, the way u explain is clear and understandable.. thank you !!
@magicalshorts3864
@magicalshorts3864 2 жыл бұрын
👋
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