Question

A string is wrapped several times round a solid cylinder. Then free end of the string is held stationary. If the cylinder is released to move down, then the acceleration of that cylinder is
A. `g//3`
B. `g//2`
C. `3g//2`
D. `2g//3`

Answer 1

Correct Answer - D
`a = (g sin theta)/(1+K^(2)//R^(2))=(g xx 1)/(1+(1)/(2))=(2g)/(3)`.