question_answer

A homogeneous solid cylindrical roller of radius R and mass M is pulled on a cricket pitch by a horizontal force. Assuming rolling without    slipping, angular acceleration of the cylinder is-     [JEE Main 10-Jan-2019 Morning]

A)   \[\frac{F}{2mR}\]        

B)        \[\frac{2\,F}{3mR}\]

C)   \[\frac{3\,F}{2mR}\]    

D)        \[\frac{F}{3mR}\]

Correct Answer: B

Solution :

[b]

Note: In this question value of force and its point of application is not given so its answer cannot be given. We are giving its answer by assuming that F is applied at centre of cylinder.