Question

A solid iron sphere A rolls down an inclined plane, while another hollow sphere B with the same mass and same radius also rolls down the inclided plane. If `V_(A)` and `V_(B)` are their velocities a the bottom of the inclined plane. Then
A. `V_(A)gtV_(B)`
B. `V_(A)=V_(B)`
C. `V_(A)ltV_(B)`
D. `V_(A)gt = ltV_(B)`

Answer 1

Correct Answer - A
`a =(g sin theta)/(1+I/(MR^(2)))`
`a_(A) gt a_(B)`
So, `V_(A) gt V_(B)`