A solid sphere and a solid cylinder having the same mass and radius, rolls down the same incline. The ratio of their acceleration will be

Options

A. `15 : 14`
B. `14 : 15`
C. `5 : 3`
D. `3 : 5`

Answer

A

Explanation

`a=(g sin theta)/(1+(1)/(MR^(2)))rArr (a_(1))/(a_(2))=(1+(1)/(2))/(1+(2)/(5))=15:14`