Pulley Block Constrained Motion for JEE & NEET | Class 11

[@physicsgalaxyworld]

Link to all lectures of Onion Physics of Kinematics - kzbin.info/aero/PLYVDsiuOZP5p6aY8hipMiTqqVbmdYAi0e Link to Concept Video Playlist of Motion in One Dimension - kzbin.info/aero/PLYVDsiuOZP5qJbEmuJy30qstS8fDQYXFQ Link to Concept Video Playlist of Relative Motion - kzbin.info/aero/PLYVDsiuOZP5pxfMHOVx-ziJnTziCQ5PTR Link to Concept Video Playlist of Motion in Two Dimension - kzbin.info/aero/PLYVDsiuOZP5rVbTWIWmdw7ZLgrpL5HUI2 Link to buy Physics Galaxy Vol. 1 Book - amzn.to/3eVGUJd To see the content of all PG books, click - edyapp.com/physics-galaxy-books

[@flyhigh4683]

I have a doubt on this since 6 months. Kindly answer please If we send a satellite towards sun and make it revolve around it within the radius in which it does not burn . We will attach 2 ion thrusters which will charge by the sunlight via solar panel on it . The 1st thruster will give angular acceleration and the second will provide the force which will balance the centrepetal , centrifugal force and radius of revolution also does not change.. The question is that Can we get a suitable velocity that it will escape out of the solar system when the 2nd thruster is turned off.....If yes , then What is the max. velocity it can achieve..

[@jayeshrajeshingale9847]

from past 2 weeks i was struggling with the constrained motion but now it feel likes it is just Makhan ..... thank you sir so much you are really king of physics

[@TsarAayush]

Same here

[@rj23032]

You are also sufficiently intelligent, so pat on your back for that❤

[@dr.rahulgautam6652]

Correct bro

[@tanyachauha.n]

Sit thanks for Onion physics . This series is making our concepts crystal clear . Please continue this . Hats off to you sir!

[@suryansh4035]

Jo khusi pogi ke board ko rough krne se phele video pause krke notes likhne ki milti hai.... It can't be define in words....😂😂🤣

[@princemishra6181]

Very true 😂🤓

[@mohammedtufail2912]

😂😂😂

[@aishwaryaa_singhh_]

Who is Pogi?

[@princemishra6181]

@@aishwaryaa_singhh_ imaginary character.

[@HeeWhooRemaiins]

@@aishwaryaa_singhh_ why r u alive..u don't know pogi ???m

[@alphaiitd1]

Another amazing lecture. Thank you sir.

[@prathammathura]

you are really genius

[@changer8856]

Answer of last question should be v/5 for sure and if doubt u can check 1.52 illustration of pg book volume 1 where a similar motor is placed and it’s tension is included

[@Harsh-jz8ud]

Yes I too get the same answer

[@tanishknath765]

Bro but usme 4 pulleys h ek bar dekho page 44 pe

[@sahilrawat-we3de]

Same

[@meghaagarwal9293]

Answer is v/5 as motor to will go up

[@renu1482]

I am also having the same doubt.

[@RRtIIT]

Thank you sir i was struggling with these questions from the book and the method given in the book is the conventional method which becomes confusing in hard questions, thanks to you now i am able to solve such questions..

[@jyotsanapatil5374]

We need cabbage 🥬 chemistry

[@DurvangPrajapati4010]

😂😂😂😂😂

[@ShivamPandey-wf2pj]

bhai bhai🤣🤣🤣🤣

[@thereal_brucewayne]

No words on how to thank you sir 🙏🙏🙏 Literally made my coaching teachers feel like shit when compared!

[@pramitmahajan5639]

Thank you sir. Your videos helped me a lot 🙏

[@gamersanskar8663]

i ways struggling in constraint motion from past few days. But, now it is crystal clear. THANK YOU SIR 🙂

[@OMNAMAH099]

But still the best part of your video is that they are objective is constant and are exam oriented and also that there isn't any wastage of time in your lectures....❤

[@Paradoxic654]

Sir please video on vernier callipers and screw gauge

[@rootxtheta]

physics legend of all time love you sir ❤❤❤❤

[@jazzy6578]

Apple-siri Amazon-Alexa Ashish sir -pogi They are universal 😂

[@chhatarpalsingih3856]

You are literally GOAT of physics

[@studyall3754]

For revision reference :- 09-07-23 topics covered --- 1) how to relate acc velo and disp'' 2)virtual work method to find relation btwn displacement. (as tot work =0 on massless system) 17:00 --> eg cases 1 21:25 imp cases

[@real_saniya600]

thank you very much sir for these amazing lectures 🤩🤗🤗

[@sanyaasati9844]

Thanku so much sir ,,your hard work in every single Vedio🙏 lecture ,builds a new IItian😊 every day

[@kushagrasinha4828]

12:20 then what about radiation pressure due to massless photons , in principle they do exert force per unit area ant if the surface gets displaced then their is work done. Is it due to its rest mass energy.

[@soaringhigh-v7m]

Sir in your book only traditional method is given so i was struggling in solving questions, thank you sir for introducing this method❤❤

[@devamishra6419]

Thank you very much sir🙏 I am very weak at physics but now I have a hope that I will master it in your guidance ❤️🏆

[@saichaitanyaenterprises9678]

Sir it's damn amazing

[@jumblefumble]

Sir in block b 19:31 won't a torque be induced due to unequal tension

[@ambarsinha9590]

Thanks for all the practice work

[@bratatichanda7122]

Sir, At 23:10 ...since the motor is connected to the plank...wouldn't the plank experience an additional tension T and thus, a total tension of 5T..and thereby making the eqn... 5Tx¹-Tx=0...??? Pls clarify this..🙏

[@bageshwarmahto6914]

Motor isn't pulling the plank upward it is just placed on it .Tension comes to work only if something is pulled not if it is placed over something

[@bratatichanda7122]

@@bageshwarmahto6914 yeah but its attached to it or else the plank would not get lifted up....so if it's attached...the tension must e felt by the plank... There is a similar question in sir's book illustration 1.52...u can check that out..there the tension due to the motor contributes...but here , sir didn't do that...so I got a bit confused..!

[@aartikushwaha6328]

@@bratatichanda7122 yeah in the q 1.52 they have added one extra x to 5x thus the answer comes v/6 i think its a mistake and hence sir hasn't done the same thing here

[@Nishant-us2il]

@@aartikushwaha6328 bro it could even happen sir has done mistake here !! how r u so sure ?

[@shreeniwas]

Answer should be v/5 i am sure

[@Nishant-us2il]

sirrr i have a doubt , shouldnt there be 5 t acting upwards ?? /as motor also puts force , and motor is fixed to plank !!

[@priyanshkumar17]

In the question , nothing is mentioned whether motor will exert force on plank A or not. We will not consider it on our own.

[@AtulyaNain-fq4ml]

its amazingggg i reallyyyy appreciate

[@vaibhavgupta8347]

Sir next lecture mein step pull bhi karva dija

[@surenderpal2440]

Really very great explanation

[@beststatusvlog6545]

Sir aap plese whole physics chapter ka aise padha digiye plz plz plz sir I blind follow you sir I am not able to read in Allen but I trust you sir .these vedio are very useful for me as well as all jee or neet students

[@furqaandar1310]

Sir i have doubt in motor problem. Sir since motor is winding the string it means that length of string is changing. My doubt is that ultimate logic of constraint is that length remains constant. But in this case if length is changing how can we relate constraint equation.??

[@Shambho1]

Here length of the string is not changing as strings are inextensible.Instead lengths are displaced as pulley is movable

[@sashankbps3329]

@@Shambho1 thank you

[@TheAditya-zt9pb]

Short,crisp Concept videos

[@apurbanandi9175]

Thank you Sir!

[@oyeha__uckya1223]

Thank You Sir ❤️ 😇 😊

[@risingstar2503]

Sir spring hogi to ye valid hai

[@manyaramchandani6788]

Sir where can we attainend live lectures of yours

[@padegaindiabadegaindia5601]

Sir what we do first cosept video or onion physics lecture

[@divyarajaram7845]

im not very sure but wouldn't the block be tilted if both ends have different velocities? i think there should be two different blocks, one attached to the motor and the other attached to the bottommost pulley. in that case sir's equation in this video would be valid and not 5Txa- Tx=0 like in the illustrations book. someone pls check my logic

[@abhijitpatil9697]

Yes same

[@abhijitpatil9697]

I think the velacity of block should be v/5 if the motor is fixed on the block

[@abhijitpatil9697]

Sir plz check

[@itstanujyadav]

Same doubt

[@RaghavAnand-ik8qe]

I think this should be given in the question that after the motor starts....block A dont show rotational motion

[@mahendrakulhari1484]

The last answer is wrong [VERIFIED all over books and internet] The answer will be V/5 Plz teach me the right thing, sir 🙏 This is matter of our marks

[@mahendrakulhari1484]

Search on Google the question by typing : [In the figure shown the velocity of platform while string is winding on the motor shaft with velocity 5 m/s will be :]

[@Piyu..shhh...]

yea i was thinking same cause the motor is attached to the plank so it will also applu force on plank

[@amaduck2132]

spent an hour on a similar qn. with the same doubt. thank god you commented.

[@amaduck2132]

im switching channels. nuh uh

[@mairwaspro6307]

20 July 2024 Kota, Rajasthan In front of Modi institute of management and technology I am here to give my CBT test From Allen We have got NLM in our test that is out of syllabus, so I am studying it so I can do it in my 2nd paper

[@adisharma4232]

Same I'll have test of nlm + friction+ relative motion in Allen

[@mairwaspro6307]

@@adisharma4232 phase..?

[@adisharma4232]

@@mairwaspro6307 ?

[@adisharma4232]

@@mairwaspro6307 leader

[@chinmayiprabhav154]

Sir please complete NCERT short notes series as soon as possible

[@learner4499]

Pogi seems to be a magician

[@Pogi_saxual]

Fact . Throughout heaven and earth he alone is the honoured one.

[@sytechgaming8517]

4:47 sir accl is F/m right? so in that case why doesn't both accelerate with g?

[@System_exit]

Thank you so much sir ❤

[@aseemprasad8308]

Sir is young and freedman university physics a good book for iit jee

[@techgamerz841]

Sir, how will we know in which direction the blocks will move ..if there are 3 blocks...if we assume the direction of acceleration anyhow then the answer is messed up..and it is also difficult to guess in which direction will the blocks move..can you please come up with such question and it's solution?

[@10divyansh...8]

Thank you so much sir

[@saumyaverma2253]

God level physics thank you sir

[@Keshav_IITD86]

Sir ji 11th me hu , maja aa rha hai abhi to , 2 saal baad aake bataunga , kya rank aayi ❤❤

[@rocknroll6059]

Sir have you started giving daily practice papers

[@bhagirathdudi8496]

Sir please make NCERT short notes

[@jinae2719]

Sir I need your help with something , no matter how much questions I solve of current electricity and capacitor next time I am unable to solve the questions . Sir can u give me some tips please sir

[@sahilrawat-we3de]

22:41 actually the relation will be 4 T.xa+T(xa-x) = 0 hoga ...and the ans will be v/5... Think carefully and thanx me later..

[@sumitkumarsahoo7270]

By traditional method also same is coming

[@DREdits-bf9eu]

Yes as on A block Their will be 5 T force on it 4T+T on motor as it is also connected on A block

[@animeshkumar9669]

Thanks

[@razin3245]

Thankyou sir

[@Aditya-qp7ww]

Very helpful sir!!! Thank you 💥💥

[@harsh_x_singh]

Sir can't we just put the cofficient of T = cofficient of V and a

[@harshithreddy1413]

Sir will you cover entire jee syllabus in onion phy

[@SJD1136]

Sir at 16.24 ,if block B has acceleration then the pulley attached with B should also have acceleration.But the pulley is massless,so net force and acceleration must be zero.Then how is it possible?

[@divyarajaram7845]

bruh mass is zero not acceleration Fnet=0*a=0

[@SJD1136]

@@divyarajaram7845 yes thanks

[@prajwaln2763]

Sir at 19:28 time interval, Xb= 3Xa ans aa rha hai by traditional method.....

[@ameyayadav6026]

God ho sir aap god ho

[@JeeAspirant-z1o]

15:43 sir acceleration g+7 m/s² nahi hona chahiye??

[@srijoyeemisra6175]

agar pulley tied nhi hota wall se..then g+7 hota... just like lift cases..where it would have been released

[@vaijayantiambole2367]

What's the difference between work done by the body and on the body ( as work done by the string on the body while work done on the body in general ) In mathematical form

[@YashChandravanshi-f6z]

I can help you understand this in a different way. Suppose you have x amount of money. This money is energy. Now if you spend y amount of money to purchase something. This y is work done "by" you so now you have total energy x-y. Similarly if something gifts you z amount of money. This z is work done "on" you. Now you have total energy x+z. Now, talking about virtual work method, here tension is internal force anyway so from newton's law of motion due to action reaction pair, net work must be zero, as we know internal forces can't do work. We only use this fact to simply our analysis.

[@saketkumar5457]

7:57

[@HdoehrkJfkfh-ei6zg]

Motor wale question me answer v/5 aaega kyuki jab plank uper by dist. x uper jaega to motor bhi dist. x upar jaega soyaha pae motor wali string par 4x+x =5x hoga

[@ziyamalik2752]

Best sir

[@AIIMS48]

Better than physics wallah

[@kiransuresh4445]

Sir can u please give A two month startgy for jee advance..........

[@kamalyaduvanshi121]

20:00

[@sciencebyrk7755]

Sir 2T kyon hua?

[@JaiveerSingh-bg2fp]

Newton 3rd law Equal and opposite forces are equal

[@AKASHJEEASPIRANT26]

Not rly Net force f1-f2=ma (mass is 0 so) F1-f2=0 F1=f2 Let upward force be f1 and f3 downward F1=2t ​@@JaiveerSingh-bg2fp

[@madhumitapauldev2383]

8:00

[@rupahallur4722]

Not understand

[@tvelayudhan789]

Dpp sir

[@pranaysanjan3327]

12:37

[@OMNAMAH099]

Waiting for a teacher to bring baingan (brinjal) physics 😂😂

[@Aspirant1210]

#Boycottpogi it is disturbing to note down peacefully 😤😡😠😁😂

[@xoxo-pt4me]

Everything is fine but please apne switch off the youtube app 🙏 😭 it's so distracting ,TVF adds 😭😭

[@doctormanhoos]

Bro it is ok to see the adds and helping the sir. He is providing quality education

[@lakshay7058]

Pura saal kinematics hi chalta rahna hai

[@DREAMKHAKI.]

#S100motivation

[@abhishekkrishna2820]

I want Patta Govi Physics 🤣😂😂😂🤣🤣

[@deshpremsahu2199]

Ye poji kon hai bhai

[@dne737]

Iit Bombay se graduate hai bhai

[@Pogi_saxual]

God ascended on earth.

[@AdityaAditya-yc5io]

Sir pls teach in english

[@RedFrost6]

nah

[@AKASHJEEASPIRANT26]

Bro weren't you just in abj sirs lecture:😶👀

[@RedFrost6]

@@AKASHJEEASPIRANT26 so were you i guess

[@Aayush-i2h]

Why following 2 teachers? Just do pg concept vids+onion physics+pg books and life is set

[@AKASHJEEASPIRANT26]

Ye ik... ​@@Aayush-i2h

[@Aayush-i2h]

@@AKASHJEEASPIRANT26 how's prep going on?

[@rootxtheta]

WHO IS THIS POJI ?????????????🤨

[@Pogi_saxual]

He is pogi.

[@wasteland3000]

​@@Pogi_saxual ayo pogi saxual😮

[@rootxtheta]

sir ne NEET ko roast ker diya 💀💀

[@11-to-all]

Sir please don't again talking ;thanku mogi: ya eretation karta ha mind ma bas yahe chalta ha ap kab bolo ga

[@jeeadvanced1230]

Thank you sir ❤❤❤❤❤

[@devangvasishth2778]

thank you sir 🙏🙏

[@kaindia9481]

Thnx sir