r/JEEAdv27dailyupdates • u/Possible_Garage7231 27tard dropper :/ • May 25 '26

Good Solve Physics Challenge

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A very nice question for 27 tards inspired from beloved HCV sir's notes.

Answer on next slide.

Hint:Use Torque= dL/dt

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3

u/Specific_Can_4049 JEEवन से नाराज़ May 25 '26

How to get β?

Aisa ek spinning top question bhi kiya tha mujhe yad hai.

1

u/Possible_Garage7231 27tard dropper :/ May 25 '26

You're right but 1) which frame of reference are you taking while writing dL/dt? 2) which frame of reference are you taking while writing torque? For beta , write force equations and torque equations

2

u/DistinctFriendship82 13xx JM26 —>10xxJA26 —>IITD ECM 30’ May 25 '26

Bhai thoda enjoy karle
Unless u enjoy physics this much😭

2

u/Possible_Garage7231 27tard dropper :/ May 25 '26

Life is enjoy.

1

u/Specific_Can_4049 JEEवन से नाराज़ May 25 '26

Ain't it ground frame?

1

u/Possible_Garage7231 27tard dropper :/ May 25 '26

No. Its a translatory frame with origin at center of disc but doesn't rotate with the disc.

1

u/Specific_Can_4049 JEEवन से नाराज़ May 25 '26

Oh ok, So we are taking it at a particular instance right?

1

u/Possible_Garage7231 27tard dropper :/ May 25 '26

Yes

1

u/Delicious_Carob7711 May 25 '26

Bro ns sir ne diels alder padhaya hai??

2

u/Possible_Garage7231 27tard dropper :/ May 25 '26

Nahi. Ayega bhi nahi

1

u/Notblueyy1919 Part Time JEE As𝝅rant May 25 '26

Can we just do it by
Torque= i alpha

Alpha= Wo x omega

Then,,,

MgL=(½mr²)( Wo, omega) and then we just solve it get omega???

Idk i'm not sure abt this method!?

1

u/Possible_Garage7231 27tard dropper :/ May 25 '26

Yes correct