Constrained Motion | IIT JEE Main and Advanced | Physics by Nitin Vijay (NV Sir) | Etoosindia

[@TheDaliyinfoSource]

1) 05:28 Sir said the angle is 53 degrees in the question 05:32 so accordingly answer would be Vcos53 2) 12:20 is a calculation error-- velocity will come out to be +8m/s which will be opposite to that of pulley A

[@dbdoxbxb]

Sir has used sign convention only in that question what about others🤔

[@tannu8071]

You are right bro..

[@_slvya1647]

That's what I thought

[@TamaghnaDas-wz7ln]

Student log protest nehi karte hain kya 😅😂?

[@misbafayaz7210]

40:19 I think the ans should be 25/3 .....bcs it will be v cos 53 as the angle between string and block =53

[@dbdoxbxb]

Yes you are right sir did not saw the angle carefully

[@chiranjeebdas709]

12:30 Velocity of blockB is +8m/s as it's mathematically right and sign conventionally...

[@tamatar3364]

Has sir done mistake at 5:48 1st angle he he taken is 37 And assuming V as x axis v =5cos37=4

[@NishantSingh-po3zo]

@@tamatar3364 yes it should be vcos53

[@tamatar3364]

@@NishantSingh-po3zo koi baat nhi ho jata h

[@vishalsharma-bg2fg]

Sir ji aj tk jivan me aisi simplified physics nhi padhi mene. Love you from bottom of heart

[@anubhavsinghal4502]

This is really awesome.... I must say, people like you motivate students who prefer self study instead of expensive coaching centers.... Thank You Very Much... Sir!

[@mishra_ankit07]

Hey bro what are uh doing now ?

[@rajkumargupta007]

Thank you very much sir! It was easily understandable and many illustrative examples helped me alot.

[@robinguglani7531]

no matter about mistakes but concept clear ho gya sir thanks alot sir thanks a lot ..

[@SoI_JEE_NEET_Physics_Math_IITB]

@ time=5:00 string length from pulley to A = l1 (say) string length from pulley to B = l2 (say) l1 + l2 =const. ==> l1_dot + l2_dot = 0 ; differentiating w.r.t.time l2_dot = - l1_dot = - 5 m/s ; l2 decreases & l1 increases with time h^2 + xB^2 = l2^2 ; h = height of pulley from rigid surface, xB= horizontal distance xB xB_dot = l2 l2_dot xB_dot = l2 / xB l2_dot = - (1/ cos 53) (5) ; xB_dot is -ve because as time increases, xB decreases v = (1/ cos 53) (5) ; v = magnitude of (xB_dot)

[@shubhamraj25]

Sir.. Please upload a video of wedge constraint... Hit like if u agree

[@natsudragoneel8537]

sir I too want that you should upload a video on wedge

[@sureshareddyhuleppa6111]

Vortex

[@ShubhamSingh-tm3ux]

@God is light Going to Heaven is there any other channel like physics wallah for chemistry and maths ? Or like nv sir!

[@ShubhamSingh-tm3ux]

@God is light Going to Heaven I want to prepare for IIT Level

[@ShubhamSingh-tm3ux]

@God is light Going to Heaven ok thank you

[@elon8595]

12:39 sir -4+ VB=4 then VB = +8 , plus sign denotes the upward movement of that box

[@maheshvermaverma3357]

Nitin Nitin Hi friend students preparing of jee mains and advanced i am creating a whatsapp group of iit students who are preparing of iit and all here in this group we will share important thing like test paper questions disscussions u can ask ur doubt and in group we will disccuss the solution of that.and we will do all important things only.. If interested then join chat.whatsapp.com/3OdEjbGZQAAKIO2S6qvfG0 whatsapp me on 7738514497 to join..

[@arytiwa4351]

Sahi hai bhai ,+8 he hoga Aur bhe kuch questions mei minor mistakes hai

[@mkmittal772]

Hare Krishna❤ Thank you sir ❤

[@marihaferoz9681]

gud video it clears all concepts related to constraint equation

[@techstreax9013]

sir at 12:52 i think that the answer should be positive 8ms instead of negative become b will movw upward

[@aryasg770]

Thanks a lot sir duniya bhar se padha lekin apke jitna conceptual clarity aur kahin nahin mili sir

[@onamission__]

Sir apse pdne ka sapna sapna hi reh gya

[@imranshaikh6314]

Dot product method is far easy that sir's method but sir increased clarity of my concept

[@aacharyahemantmudaliar8696]

First example me angle 53 tha aapne calculation ke time 37 liya hai Velocity of B +8m/s aayega aapne -8m/s le liya hai

[@MrKhan-hk9iq]

Thankyou so much sir for clearing my doubts. You have amazing experience for teaching.👌👌👌👌👌👌👌👌👌👌👌👌👌👌👌👌👌👌👌👌👌👌👌👌👌👌👌👌

[@dbdoxbxb]

Sir saare question khud karpaya thanks sir vaise first question me aapne cos53° ko cos37° le liya hai

[@kvbnmkkm145]

Thanks for this help sir, A lot of students who can't afford expensive coaching are getting benefitted by this initiative of yours. May the DIVINE POWER bless you with even more knowledge, health and wealth....

[@LetsLearn10th]

Sheet kaha milegi?

[@shivangivishwakarma6295]

Sir I lyk the way u teach. And literally I understand it very well. Sry to say But by mistake aapne first example m angle cos37 le liye it's actually vcos53'

[@harekrishnaharerama2735]

Mujhe bhi yahi laga

[@bugBusters1192]

Vb ki value b +ve aegi 8

[@pratimtarafdar6862]

No sir is right plank hamesha horizontally chalega

[@kshitijvispute6792]

Pratim Tarafdar , please explain , sir 🙏🏻🙏🏻🙏🏻

[@drv255]

By mistake ho gya hoga sir se

[@PhysicsExpressCMSir]

Everyone is copying your contents, and getting more famous...but you are India's best sir...

[@drkiranmahabole1836]

Kya padhate ho sir bhai saabb ekdam mastttttt sir thanks 👌🏽👌🏽👌🏽👌🏽👌🏽👌🏽👌🏽👌🏽👌🏽👌🏽👌🏽👌🏽👌🏽👌🏽👌🏽

[@sankarmajumder2415]

12:39 time slot vb= +8 m/s

[@05d_dineshkumaryadav_chem29]

In 1st questions angle is 37degree

[@krishsharma1942]

mujhe bhi constrain motion samjh nahi aa raha tha apne aakash ke teachers se phir mene socha yrr apne jeetu bhiya hai na .................... now i am feeling very happy

[@harshsolanki146]

kota teachers are really god!

[@Me_Monal]

Absolutely right

[@Bhavuklamba-q6n]

thanku so much sir you cleared my doubt sir mein paramvir sir ka student bhi hu

[@madhav3187]

Wow what a explanation . Hats off sir.

[@rockersoo5652]

Doubt clear Kar Diya sir apne.Excellent video

[@Aditya_ytm]

Osum

[@phalgundadheech3154]

Sir 12:38 pe vo Vb jo hai vo +8 hoga -8 nahi.

[@abjkgp]

Phalgun Dadheech right

[@harshityadav8409]

ADARSH SHARMA Nope... velocity of b will be 8m/s in upward direction because NV sir has taken downward velocity as -ve Nd upward velocity as +ve

[@ajaj2rsborn856]

Integration Differentiation 00

[@ceramicblocks]

+ADARSH SHARMA Clearly you don't know about -j cap and +j cap brother.

[@uniqueeuqinu9235]

are yar to kya ho gaya

[@mohitagarwal1823]

One of the best video on constrain motion

[@abdurraheem1320]

One of the finest and simplest teacher for student

[@sreajan]

Sir I am preparing for GATE aur ye concept mje 11th se hi smjh nhn aaya tha.... aaj smjh paya hu. Thank you so much Sir. 🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻

[@royalyadav5527]

yes mxt padhatay hh yeah sir bhi but Physics wallah ka Dekho wo bhi mxt hh bhaii constraint motion by physics wallah 40 minutes ka hh

[@clashofcombat9295]

well done sir !!!! got my doubts cleared and concept too. thanxx a million

[@akshitkumar9402]

Did u get iit

[@elite7585]

@@akshitkumar9402 lmao

[@elite7585]

where u studying now

[@akshitkumar9402]

@@elite7585 iiit hyderabad

[@akshitkumar9402]

@godl fan from 2019 i’m in CS. Yes, please follow your material and teachers + solve archives, should be enough for JEE main and advanced

[@avaisahmadkhan7311]

5:55 the angle in the question is 53°

[@Vipulpasii]

must needed video thank u sir

[@SumiSeby]

Sir, at 5:34 isn't the angle that you took 53, in the question?

[@ok-ku8cc]

Awesome sir... Neglecting some genuine mistakes. Thanks

[@SuprovatBhattacharjee]

Alakh sir's expressions match with NV sir..

[@swirleythrone7069]

Both are one of the greatest teachers in Physics

[@durgeshtripathi9709]

He(NV sir) is the best

[@piyushsinghjeeaspirant3650]

NV sir is the best physics teacher.

[@shriganeshayenamah3422]

Alakh Pandey hero hai, aur koi doosra nhi ho sakta

[@Rahul-bi5eb]

Vijay sir is principle but alakh sir is whole school😎😎😎

[@sharathreddykonduru5194]

You are going to be a turning point in my life sir.. thank you so much sir

[@Harsh-if8dz]

Sharathreddy Konduru good luck bro.

[@AryanSingh-qr9oz]

it was a good experience watching nv sir's video...it was very easy to understand and simplified to its almost. I think sir is a good desi teacher..thanks for the video,hope I secure full marks in test

[@ramanpatel139]

This man is a legend👌😘

[@afshan424]

it is again a awsm video sir....I missed somethings a lot in this video.....'haan Na bol yaar'...Jo bola Mene tujhe chamka....aur dekh....! you are indeed a nice teacher....

[@neetnotes-o-hub1970]

afshan ahmed Right

[@19.harshdeepsingh36]

Aur sundar kanya ko kaise bhool gye tum😬😂

[@KeshavSingh-kq7bq]

I study at Motion Nashik 👍👍👍👍 My physics sir teaches same like NV sir 😊😊😊😊 Also Chita is included😂😂😂😂

[@Aj_nitian]

2saal ke baad ye samjh aaya hai tnq sir ❤❤

[@kirtankumar4701]

Thankyou sir for this lecture and all of your endless efforts my lovely guru

[@RahulVerma-mx2pn]

One of the best teacher in India..(1st for me)

[@Ramesh-ps7yn]

Itna achcha koi kaise padha Sakta hai👏👏👏👏👏👏hats off sir

[@sanchitasingh2645]

sir using a question from Irodov just to clear our concepts made my day.

[@rank1999]

Kya chij mast lagi

[@aartiprajapati945]

Good video sir but not clear all doubts of constraints motion

[@utkarshpuri3739]

I watched this video when i started to study physics in my drop year..... Now I'm in NIT WARANGAL... He is my god... ... May god bless you sir 🙏

[@nivedyasachin9667]

bhaiyya how much percentile did you get to get into nit? it's just so that i can keep some minimum aim for myself.. i dont mean anything bad.. its fine if u dont want to say. but just consider me as someone trying to gain help from you

[@utkarshpuri3739]

@@nivedyasachin9667 bro my percentile was 98.96 and if you have it more than 98.5, you can get into NITW

[@nivedyasachin9667]

@@utkarshpuri3739 oh my god... you scored amazinggg.. will you be happy to help if I need guidance??

[@damankumarsingale863]

Thanks to upload this video it's really nice and fully understandable. Please keep uploading these types of videos really helpful

[@kamalakarjadhav6682]

22:22 trick

[@parthdixit4159]

Thankyou so much sir...so this is the first ever teaching channel which i have subscribed

[@How_universe_works]

Superb explaining video sir. 👌

[@dakshgoel7752]

Really great sir... You are awesome, Just like Sir Walter Lewin, you make lectures "for the love of physics"❤❤

[@siddhantjadhav1108]

Great Explanation sir.. Thank You

[@nmpai]

sir first eg :_ v cos 37 is not equal to 5..plss check..consider v as 5 and v cos 37 as vb...then vb=5*4/5 =4

[@jugalshah9261]

Thankyou sir, your teaching is great😊😊🙏🏻🙏🏻🙏🏻🙏🏻

[@goutamlakhshakar5388]

Sir you are supppppppperrr best teacher of my life

[@sciencehacker7541]

Though there are very minute 1or2 mistakes but it's a really nice video for learning the basic concepts

[@conceptuallearningforiitje9738]

What is mistake fool

[@adeeb1787]

That the angle was 53° not 37°

[@Neet-vp2wl]

5 mistakes

[@Innocent.guy.]

@@conceptuallearningforiitje9738 in the starting questions sir took vcos53=2 but it should be 2cos53=v...in all starting questions sir did this mistake.....but no problem jo mujhe nhi aata tha wo mai Sikh gya☺️

[@subhxmrout1270]

What a video!!! Cleared all My Concepts *******

[@Rohankumar-dd2ss]

Point method is so good

[@chandlerbing6048]

@Kallo ???? Dude in education their is nothing called stealing. I hope you understand

[@chandlerbing6048]

@Kallo ???? 😂😂😂😂lmao forget it

[@gazalashireen6799]

But i have a problem.... How do we know if length increases or decreases? Plzzz let me know

[@AmanTheMystery]

Sir u r the best teacher in the world

[@autismo1969]

Brilliant video sir. You teach better than my physics teacher at Allen

[@k.p7873]

Prithvi Kewalramani which teacher?

[@adityapareta2945]

Starting me hi angle 53 ki jagah 37 le liya aur tu keh raha h allen k teachers se better pdata h waah

[@ravikesharwani8936]

Abe iitian hai sir pata hai iit ki importance

[@SK83729]

Aditya don't u make mistakes

[@ramanpatel139]

Aditya Pareta That is simply a mathematical error not a conceptual, so can be ignored.

[@manhwamaniac21]

Sir ki Jaan bacche hai sir ka fuel baccho ki aawaz hoti hai aise teacher bahut kam milege kabhi unke classroom wale video me sunna unko

[@studydude628]

5:32......sir I think it is 53....from triangular law of vectors🤔 I really like the way you teach ....fast and efficient...

[@gerishsingh46]

Yes

[@gerishsingh46]

I was also thinking the same thing

[@shubhamrana1022]

It should be v cos 53 instead of v cos 37 right?? Plz reply?

[@mahendrakumar724]

Sir I struggled in solving hc verma questions but after watching your video I solve all questions of nlm 05

[@aryankhullar7101]

This was a really great explanation merko finally ye concept agya that too in just 40 mins,

[@roshnidhingra7956]

V nice sir..it seems like a trick......great teacher

[@alishasayyad5396]

Dilse thank u sir aaj do saal baad string constraint pura chamka ...thanks alot .. Ab string constraint ke qns solve krengey...thank u sir...😊😊😊

[@HimanshuKumar-lg4jm]

Lol

[@amanbajpai3937]

awesome sir..mera wedge constraint weak tha ..ab toh samajh me aa gaya

[@tanya9212]

Hello Sir, pls check that in 2nd example when the video is at 7min, the velocity v directed in X axis should be (2×cos 37) which tends to be (8/5) or 1.6. The componen of vector in a dimension can't be more than the vector itself. As the velocity supposed is 2m/s while the component is more than 2m/s.

[@prathamsharma8874]

Hi Tanya Verma, You are correct that velocity is in X-Direction, but I think you have mistaken what Sir actually meant. See, 2m/sec² is the velocity which block is moving. So, here it acts like Horizontal Component of V, not 2 m/sec² is horizontal component of it. I hope now you understood this concept. Firstly you made me in trouble but I am now fine after seeing this throughly. Hope, Your Days will be fine with Spark of Happiness Hope you will your JEE/NEET with Flying Colours. A Student just like You Pratham

[@chiranjeebdas709]

@@prathamsharma8874 bhai tu speed bol raha hai phir dimension acceleration ka kaise?

[@araa3474]

@@prathamsharma8874 tujhe keshe pta woo Tanya varma hai 😒

[@araa3474]

@@prathamsharma8874 tu Tanya ko janta hai

[@araa3474]

@Rishab Basotia tu kha se hai

[@ajaykumarpandey8289]

Thanks you sir for the explanation

[@keshavkumargupta2301]

My concepts build strong by your video sir thanks so much

[@ineedcauseandeffect8734]

Sir you are the best.. trust me there is no one better than you

[@ShuvajitSaha-gs1fy]

Yes but Alakh sir is also there and I appreciate both the teachers

[@ankitmaheshwari8283]

V cos53 hona chahiye na at 5:37???????.....plz tell me

[@abhishek_kumarvelloreinsti1866]

Haa bhai whi hoga,,,, vcos53 tension na le.... :)

[@ankitmaheshwari8283]

@@abhishek_kumarvelloreinsti1866 ok.....thnks bro😊

[@TheAditya-zt9pb]

Waah,Kya Teacher Hai

[@kirtideswal6730]

Sir,if acceleration is given instead of velocity then,can we apply this method?

[@guntassingh9363]

Yup, take double derivative of x1 + X2 = k, you will get same result

[@soumitripradhan5548]

Absolutely

[@rababzehra9692]

Yes

[@pranithagandham8104]

I think s

[@chandankumarmodi6641]

Sir i did not understand this constraint motion in class.but i understand the whole concept now.awesome teaching way.once again thanks sir.

[@ashishrajmusic3072]

You don't need to say about this we are expert in doing this 34:37

[@shudhanshubhushan7387]

Haaaahaa

[@divyaattri2801]

Thanks a lot sir....u r superhero of physics....god of physics

[@arjunsingh-ud8xh]

god bless him

[@naveendongre6180]

*THANK YOU SO MUCH SIR😀😀😀😀😀*

[@sankalpsaxena7249]

Sir u are just awesome... all concepts cleared

[@srirammurthy4721]

One more best conceptual video from NV Sir

[@princebansal5942]

4:20 Won't the angle of B change when A moves left? Because B can only move horizontally until the angle becomes perpendicular to the pulley.

[@saurabh_prasad]

Sir please upload your all chapter videos.. Hit like if u agree....

[@sumantasahoo9901]

One of best teacher in india

[@facevalue2162]

Best teacher ❤️

[@AshokKumar-yx9qx]

Chutiya log koi ek topic samaj mein ata hi you are best teacher pata nahi inko best ek hi hota hain yun nahi ki best you

[@Lucky_fencer]

Thank u veryyyyy much sir..... VERY Helpful.... ♥️♥️

[@pratik7453]

Sir at 13:15 we considered velocity of a as -ve but we got velocity of b also negative but how they can have same direction

[@aashleysaggar1836]

Pratik Rathod man if it's negative then just implies that it's in opposite directions do in any way and maths will take care of direction

[@saileshs705]

It was a mistake... the answer is 8

[@dilkashkhan5181]

One of the ginus teacher in the world

[@neetnotes-o-hub1970]

Sir ur teaching is suitable for droppers and not freshers..

[@harsh21012]

If u aren't able to understand the concept u shudnt blame him😂😂.constrained motion is very imp for competitive point of view....

[@asifzia4829]

They are indeed for droppers. If you see his course on Etoos you will see it is mentioned that this course was designed for 12th graders and droppers.

[@avengerharsh701]

I am a big fan of nv sir

[@umangji6772]

thank you sir great explanation. :)

[@maheshvermaverma3357]

Umang Ji Hi friend students preparing of jee mains and advanced i am creating a whatsapp group of iit students who are preparing of iit and all here in this group we will share important thing like test paper questions disscussions u can ask ur doubt and in group we will disccuss the solution of that.and we will do all important things only.. If interested then join chat.whatsapp.com/3OdEjbGZQAAKIO2S6qvfG0 whatsapp me on 7738514497 to join..

[@oneshotstudy4303]

At 7:13 block niche Aane per angle bhi to change Hoga To velocity change hojegi

[@mrinalthakur3946]

in the first question the angle is 53 not 37

[@pramodurawat5230]

You are right bro

[@sakshammankotia773]

mrinal thakur yeah

[@Vaibhav_Kumar_2003]

mrinal thakur exactly

[@pratik7453]

mrinal thakur yes

[@maheshvermaverma3357]

mrinal thakur Hi friend students preparing of jee mains and advanced i am creating a whatsapp group of iit students who are preparing of iit and all here in this group we will share important thing like test paper questions disscussions u can ask ur doubt and in group we will disccuss the solution of that.and we will do all important things only.. If interested then join chat.whatsapp.com/3OdEjbGZQAAKIO2S6qvfG0 whatsapp me on 7738514497 to join..

[@sumaiya5065]

NV sir best online physics teacher ....

[@adityabakshi3319]

Lol Do you know Alakh Pandey(physicswallah)😎😎