Question

A mass m 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 acceleraton will the mass fall on release?

(a) 2g/3

(b) g/2

(c) 5g/2

(d) g

Answer 1

Correct Option (b) g/2

Explanation: 

For the mass m,

mg - T = ma