WORK, ENERGY & POWER | Most Important Questions For NEET | Prashankaal Series

[@PW-NEETWallah]

▶️To download Lecture Notes Visit Prashankaal Series Section in UMEED Batch of PhysicsWallah App(bit.ly/3ru9Agh). ✨ NOTE : This Batch is Completely FREE, You just have to click on "BUY NOW" button for your enrollment. 🔴 Details About The Series : ✨This Batch is Completely LIVE. 🔴 Time Table for the Batch is : Biology - Mon to Sun - 09:00 am -10:15 am Physics - Mon to Sun - 10:30 am -11:45 am Chemistry - Mon to Sun - 12:00 pm - 01:15 pm ✒️ Targeting NEET 2021 Exam ✒️Daily LIVE classes on our KZbin Channel "Competition Wallah" ✒️ PDFs of Lecture Notes after each lecture will be provided on PhysicsWallah App (bit.ly/3ru9Agh) & physicswallah.live 📎 NEET TEST SERIES ON PW APP((bit.ly/3ru9Agh) & physicswallah.live 📍Sequence of Chapters : drive.google.com/folderview?id=1L3SvNmYoOMxfMdrkM0hFHhWJbwc8icfo ▶️Physics Crash Course for NEET - by Alakh Sir : kzbin.info/aero/PLJyab0VQDBGWVYHPLjAHjw9y1YB9Gf4bf ▶️Zoology in 30 Days | NEET : kzbin.info/aero/PLJyab0VQDBGWhd2WLnn_uvw71XqSNj3pn ▶️Botany in 30 Days | NEET : kzbin.info/aero/PLJyab0VQDBGW-xtJIWbQ4fiQDxkaf_-MT ▶️Inorganic Chemistry in 20 Days | NEET : kzbin.info/aero/PLJyab0VQDBGU4n85id5xYWp2NV63tve4p ▶️Organic Chemistry in 20 Days | NEET : kzbin.info/aero/PLJyab0VQDBGVVN1SglQtKjnWvVeEDrusM ▶️Physical Chemistry in 20 Days | NEET : kzbin.info/aero/PLJyab0VQDBGW-XCZvX8lwMDU9sd2J1qBI For any queries or complaints Visit : For PW APP : physicswala.page.link/?type=contact-us&data=open For PW Website : www.physicswallah.live/contact-us #Prashnakal #Umeed #CompetitionWallah

[@sabreshiyer2145]

Sir, iske Google form me roll number ke column me kya fill karna hai? Kyuki NEET 2021 waalon ko admit cards ab tak mile nai hai....aur application number enter kiya toh dikha raha hai enter proper roll number. Please guide us.

[@kush9830]

sir roll number nhi aaya h abhi

[@medicolife871]

@@sabreshiyer2145 hn

[@medicolife871]

@@kush9830 same doubt

[@medicolife871]

Aane par bharana honga shayad phir Voh so why given so early

[@arpanakumarineha868]

SIR AAP BHUT..BHUT...ACCHA EXPLANATION DETE HO...EKDM SUPER...🌟🌟🌟...AAJ TO MAX..QUESTIONS CORRECT HUA MERA...🥰🥰😍😍😍...THANKU SOO MUCH SIR...😁😁🙏🙏🙏🙏🙏🙇‍♀️🙇‍♀️🙇‍♀️🙇‍♀️🙇‍♀️🙇‍♀️🙇‍♀️🙇‍♀️👍🏻👍🏻👍🏻👍🏻 EKDM SUPER SE V UPAR...EXPLANATION...💃💃💃

[@GaneshKishoreG]

21:10 (positive work on spring) 33:04 (oh no) 38:34 ******(aah) 53:10

[@gracekapur]

Thank you soo much for your hardwork and love sir... this was the best lecture sir... 🙇‍♀️🙇‍♀️🙌🙌

[@anshullecturer]

💓।।राधे राधे।।💓

[@nikitameena7924]

56:34 such a great motivation🙏❤️🙏

[@moh_zahk8719]

Plz help - at 18:10 Then why our body move forward? We pull ourselves forward from front leg which applies force on ground in backward direction and ground in forward 🥱. Similar example given by sir in convare belt the point of contact dosent change then how come friction is not zero( according to sir theory)

[@ShrutiSingh-pi6qe]

This is my frst cmmnt by observing your videos... You are rocking ❤ thankyou sir great explanation with great thoughts

[@cheeseburgerfirst7372]

WORK, ENERGY and POWER🔥🔥🔥 Well, that's Team Physics wallah for us...❣

[@ashiskumarmanna3053]

Thankuu sir 😊💜

[@apashutoshpradhan3584]

29:13 W=mgR(1-cos30)

[@Satishmishrasmosm]

Great keep it up,😀

[@apashutoshpradhan3584]

@@Satishmishrasmosm thank u

[@Wild_wolf_01]

Question 8 work done by gravitational force = mgR(1-cosQ)

[@drishrashaikh3184]

Dhanyawad Gurudev selection ke ek step aur paas lane ke liye waise Sir Aapki Bhasha Bilkul hamare jaise hai UP ka Lucknowi andaj 😌😌😊

[@drishrashaikh3184]

Sorry aaj morning me test tha to live join nhi kar paye ☹️

[@harshvardhansingh4008]

Sir Lucknow se hi hai

[@drishrashaikh3184]

Work done by gravity mgr (1-cos30°)

[@drishrashaikh3184]

@@harshvardhansingh4008 i know 😅

[@Satishmishrasmosm]

@@drishrashaikh3184 great keep it up..

[@nehrakajal5012]

in Relaxation work done by spirng is positive

[@AdilAhmedMBBS]

50:10 We can also do this question by double differentiation analysis of U

[@moh_zahk8719]

Plz help - at 18:10 Then why our body move forward? We pull ourselves forward from front leg which applies force on ground in backward direction and ground in forward 🥱. Similar example given by sir in convare belt the point of contact dosent change then how come friction is not zero( according to sir theory)

[@AdilAhmedMBBS]

@@moh_zahk8719 imagine frictional force as a normal force... When u apply force on to something but that thing doesn't move(example: exerting force on wall)... Then Work Done is zero since Work = Force • Displacement... Here no displacement is done by friction... So no work done In the conveyor belt example ... No other forces are being applied on the object other than the contact force on ground(friction force)... But the object is moving forward... So friction is causing this movement and displacements is in the direction of friction... So Work done is +ve

[@moh_zahk8719]

@@AdilAhmedMBBS but in conver belt motion wrt belt is zero na 🤔

[@moh_zahk8719]

@@AdilAhmedMBBS i do understand the 1st point but my problem is with 2nd

[@AdilAhmedMBBS]

@@moh_zahk8719 wrt belt is zero... But it is moving if we see from outside... Just like 2 block system problems... where one block is over the other and force is given to lower block... If both have the same acceleration i.e. when they move together... The work done by friction between the two blocks is positive

[@paranjaysinhgohil8512]

Thanks for imp questions sir... great help for Mee..

[@ArhamKhan-gr9wk]

All the best to all neet aspirants ❤❤❤❤❤

[@richakumari9349]

Question no 8 wd by gravity: - mgR(1-costheta)

[@prasadnimbal]

👍

[@Vinayak-o4c]

Yes right bcoz mg is downwards and displacement is upwards

[@bbagaming3657]

👍

[@manjula.rathod5270]

@Richa kumari plz explain me

[@washimakram7942]

Oops dat I thought it's costarica

[@m.kafeel]

For Mishra ji🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥❤️

[@hrittikrajmbbs43]

Sir u r awesome teacher..love your teaching style.❤️❤️

[@sanatsharma7396]

-mgr(1-costheta)29:15

[@moh_zahk8719]

Plz help - at 18:10 Then why our body move forward? We pull ourselves forward from front leg which applies force on ground in backward direction and ground in forward 🥱. Similar example given by sir in convare belt the point of contact dosent change then how come friction is not zero( according to sir theory)

[@Bhawana23]

THANK YOU SO MUCH SIR 🙏🙏🙏💖💖 ur teaching style is amazing 👌👌🙏🙏

[@Satishmishrasmosm]

Thank you dear😀

[@joyxix]

@@Satishmishrasmosm That is sir's official channel btw

[@arpan_hutait_WB]

💙Thank you @Satish Sir ji 🙏 Amazing Class ♥️ Attendance ( like) Neet 2024👍

[@Manshi417]

ᴘʀᴇsᴇɴᴛ 💕 ᴅᴇᴀʀ😂😂😂

[@arpan_hutait_WB]

@@Manshi417 thank you 💙

[@Manshi417]

Arpan... Most welcome🎉 🙏🙏🙌

[@arpan_hutait_WB]

@@Manshi417 okay PWins

[@raosachin278]

Que no 8me work done by gravity mgR(1-costheta)

[@arpan_hutait_WB]

Thank you sir ❣️ Finally completed 👍

[@Radheradhe-zh3cb]

Thankyou❤ sir❤🎉🎉🎉🎉

[@kumarkaushik960]

Tq sir a lots of love from Odisha 🇮🇳 💕 ❤ 💗 💖 🙏🙏🙏🙏🙏..question session maja agayaa guruji 🙏🙏🙏🙏

[@muruganindhu2308]

Thank you very much for your support to neet aspirant

[@kaur931]

Thnk you sir 👍❤️

[@bijayyadav910]

Ekdam Maja agya sir thank you so much

[@khushaiims03]

work done by gravity -mgr(1-cos 30)

[@Satishmishrasmosm]

Great, keep it up.

[@kanishkapatil2781]

MgR( 1- cos theta)

[@kanishkapatil2781]

👍

[@tuphodega890]

😢 1:04:35

[@amitroshanbiswal]

Thank you so much sir 🙏🙏🙏

[@Pacific977]

Zamazam 💖💖💖💯

[@prerna4682]

He teaches just like alakh sir.... Lots of love sir.

[@harshmehrotra2130]

Sir , answer of Ques at 29:15 is ~ (-2.7)R Formula = -mgR(1-cos theta) Thank you sir 👍👍👍👍

[@moh_zahk8719]

Plz help - at 18:10 Then why our body move forward? We pull ourselves forward from front leg which applies force on ground in backward direction and ground in forward 🥱. Similar example given by sir in convare belt the point of contact dosent change then how come friction is not zero( according to sir theory)

[@harshmehrotra2130]

@@moh_zahk8719 first Ques k liye toh Newton's third law comes into action....means hum ground per force lagare haiin in backward direction Nd ground humko push krta haii forward direction main....Friction uss foot per lagegi jo ground se contact main haii and since ground se contact main haii toh displacement nhii haii (till the period foot is in contact with ground) hence friction Ka work is zero....!👍 Conveyer belt k case main.... friction is non zero bcoz normal rxn is non zero....since normal rxn will act on object due to its weight so usper friction lagegii.....

[@roshanpaul5578]

@@harshmehrotra2130 about conveyor belt he is asking that how is work done by friction is non zero as point of contact of body and coveyor belt doesnot change

[@hustlergaming7211]

Thank you so much sir for such questions ❣️❣️❣️ really very helpful

[@PriyankaGupta-um8mh]

Great efforts from your side sir 👌🏼👍👍

[@samhithashivakumar6750]

Mast sir!!🤗❤❤

[@birendarrao8702]

You are great sir💯😊

[@motivationalguru9459]

In sir se pdhne m mja ata h

[@AnArtistHeart]

29:15 Question 8 ans is =mg(R - RcosTheta)

[@arpan_hutait_WB]

Yes 🚩

[@radhabargali4859]

Arjuna 2.0 batch ... Really amazing sir 🙏🙏🙏you are an amazing teacher

[@msanendh4861]

Thx sir for such a noice claz

[@greatestofalltime7968]

Thank You Sir For This Awesome Lecture ❤️🙌

[@Satishmishrasmosm]

Thank you dear!!😎😍

[@Alok_rao___]

फिर फीस एक डॉक ध्यान दिया फिर गया फंस डॉक के फोन डॉक फिर खोज किस किया निजी झूल ही एक हॉक रेट एलिज एक जोह जो जी जी झूम झूम जब जब जी जी जन्म हों हूक जल जून से एक डोर होड़ फीस से उन एचडी थे गोद लोग सिंह हों ढाई दी बस एक उदित विफल था फिर जीवन डीएल ठीक जून घुस हिल सब गिरी फाइल फूल केवल जोह दी हो हो एक हो दी दी जी हो एक टी एक इक एचडी डीबी उल जीएम जीबी उफ दी उफ एक उफ एक एचडी एक,. एमएम

[@MrsRaniShastri620]

Thanks sir 🙏🏻 ☺️ 😊

[@jimedits7956]

Maza aagaya sir. Jhama jhama question lagaya 🔥

[@Radheradhe-zh3cb]

Bohot maja aya thanks sirji

[@anamansari1716]

Thanks a lot ....for your efforts for us....👍👍👍🥰🥰🤪🤪🥰🥰😘😘😘

[@prasadnimbal]

Mast tha lecture, thank you sir ji🙏🙏🔥

[@gametech693]

just🔥🔥🔥

[@parmeswarikhakhal7662]

Thanku sir🙏

[@vap5924]

Thanks 😊😌

[@TriptiChhangani-ox8sq]

59:42 this can be solved within seconds by checking dimensions only🕵️‍♀️

[@anushka770__]

All correct✅😊

[@notlittlethings8478]

Grt lecture 🙏🙏🙏🌹🌹⚕️⚕️👍👍🙏🙏

[@gaurakshsinghi9219]

29:05 Wg = -Mgr (1-cos30)

[@pranavbarmate6410]

Explain please 🙏🙏

[@elijaparvin2333]

Thank you 🙂

[@yashdeshmukh8158]

Sir mbbs wallah please

[@yashchopadey8169]

Awesome sir

[@jg-in2xr]

Very very tq sir

[@tiyaaa_verse]

Thankk uu Sir

[@AnuragD720]

Thanks

[@narutoanime878]

Very helpfull

[@souravmohanty1200]

Sir 🙏🙏

[@SJTALKS4U]

Question 8 .. ans of work done by gravity will be mgR(1-cos30) .. am I right sir ???

[@arpan_hutait_WB]

Yes beta ji 🚩

[@OnlyStudy-u9e]

⭐⭐7:41 7:52 29:18 31:02 35:49 41:08 44:15 59:36 1:03:53 1:06:35 1:12:24 1:15:24

[@bhawnabhardwaj7673]

Work done by gravity is -Mg * (R - R Cos 30°) = -10R(2-√3) J

[@neet126]

While walking work done by friction force is zero 😮😮

[@himangshudeka3138]

Brothers of neet aspirant after seeing this be like Iss aadmi se bach ke rehna hoga 🤣🤣

[@enjoybro8427]

Super physicist and comedian 🤣🤣❤❤❤🙏🙏🙏

[@sabiyabi5697]

Sir aap bahut acha padhate ho 👌👌👌👌👌👌

[@roshanpaul5578]

59:25 velocity inversely proportional to time hence, power proportional to t2

[@prt4691]

Dekho v= u+at hota hai Aur a constant diya hua hai and u=0 diya hai Toh v=at aa gaya And P= F•v= mav yaani P= ma(at)= ma^2t Yaani P is directly proportional to t aa gaya

[@roshanpaul5578]

@@prt4691 got it

[@mitochondria592]

@@prt4691 dp =dw/dt W=pt Ke (final) -ke(initial)= pt Ke (f) =pt (as u=0) 1/2mv*2 =pt V = root of (2pt /m ) so v proportional to t*1/2 ….what’s wrong in this explanation…can u plz explain…I am not sure ☹️

[@prt4691]

@@mitochondria592 power constant nhi hai time par depend kar raha hai isiliye aise nhi aayega

[@mitochondria592]

@@prt4691 ok got it ..thank you ...💜🌝

[@blackpinkingdom]

In que 21 velo at highest point can't be zero right!! It's velo = √gr plz anybody tell whether it's right or not??

[@MdBablu-sw3fo]

Question no.8 work done by gravity is -mgR(1-costheeta)

[@Ahsanawan-o2p]

Q.2. Option b

[@meerhuzaif2335]

Zbr 10🥰

[@sk...sharma]

Thanku.sir

[@raufshishgar2015]

Yes c 😊

[@SJT480]

जो चलता हैं उसपे लगता नहीं और जिस्पर लगता है वो चलता नहीं

[@YS-gn3bj]

Jo PW app m attachment h Neet result submission form ka wo kb fill krna h?????????

[@harshitaa-k8x]

🔥🔥🔥🔥🔥

[@asmapanikkaveetil7128]

35:32 🍀

[@Bantykhinchi]

Thank sir

[@Neet-zm5gf]

51:00

[@honey-vg2vk]

20(√3/2-1)

[@saptarshibhattacharya]

are these pyqs?

[@smartgaming9190]

Sir ummed series ke physics ke last ke 6-7 chapter jaldi se khatam kare please🙏🙏🙏

[@lakhandeepshah3286]

Best series ❤️

[@N.A.DESAI_1]

NEET 2024 ATTANDENCE.

[@ramratti1308]

Negetive

[@ankur2.3]

🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥

[@jaatmind252]

Sir mere se ek question bhi nhi hua . But concept sikhne ke baad sare bn gye

[@kingcobra5260]

D option lock Kiya jaye

[@yashwantdeshmukh5151]

Sir mbbs wallah please...

[@abhijitshirwal]

Sir I learnt science by physics wallah, learnt to apply it by action lab and electroboom. When I started applying what I learnt in real life, I get many questions in my mind which irritate me. I have 2 questions, the one who answers will be appreciated 1) at terminal velocity, velocity becomes constant, which means no work is done. But potential energy changes 2) in AC current, charges accelerate continuously, does that produce EM waves? If yes, why don't we see energy loss?? Thankyou to one who answers 😀

[@themasterstoke999]

How can work be 0 , if only an obj, travels wd constant velocity.... Ur statement seems wrong. Work don't depent upon constant velocity.

[@themasterstoke999]

In ac,,,, yes em waves are formed.. And there is loss of energy. E. G, heat waves we get in Electrical heaters

[@abhijitshirwal]

@@themasterstoke999 thankyou

[@hrishikeshroy2478]

😍😍

[@Ash_ra_]

​@@themasterstoke999 I think acc 0 hogya na

[@muruganindhu2308]

Q. No 21 :6.32m/s

[@pihu1668]

Sir ap itna kyun Hasate ho😁😁..jalwa h humara ; mooh tut jayega shaadi nahi hogi isliye dhang se chala karo😂😂😂😂😂😂😂😂😂😂

[@Satishmishrasmosm]

😎😍

[@priyanshi6261]

Sir question 1 me (3i + 4j) h aap ne Solution me + ke jaga - Kiya h

[@SameerKhanMotivationalvideo]

👍👍

[@alfarukahmed9677]

❤️