question_answer

A mass ‘m’ is supported by a massless string wound around a uniform hollow cylinder of mass m and radius R. If the string does not slip on the cylinder, with what acceleration will the mass fall on release?     [JEE MAIN 2014]

A)        \[\frac{5g}{6}\]            

B)        g

C)  \[\frac{2g}{3}\]            

D)       \[\frac{g}{2}\]

Correct Answer: D

Solution :

[d]

(1)

(2)

(3)

Solving                                        (4)