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Physics - Rotation Question with Solution | TestHub

PhysicsRotationTranslational + RotationalMedium2 minPYQ_2019
PhysicsMediumsingle choice

A homogeneous solid cylindrical roller of radiusRand massMis pulled on a cricket pitch by a horizontal force. Assuming rolling without slipping, angular acceleration of the cylinder is:

Question diagram: A homogeneous solid cylindrical roller of radius R and mass

Options:

Answer:
C
Solution:



F-fr=mai

frR=Iα=mR22α(ii)

For pure rolling

a=αR(iii)

Fromi, (ii)and(iii)

F-mRα2=mαR

F=32mR  α

α=2F3mR

Stream:JEESubject:PhysicsTopic:RotationSubtopic:Translational + Rotational
2mℹ️ Source: PYQ_2019

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