A solid sphere rolls down two different inclined planes of the same height but of different inclinations

Options

A. Speed and time of descent will be same
B. Speed will be same, but time of descent will be different
C. Speed will be different, but time of descent will be same
D. Speed and time of descent both are different

Answer

B

Explanation

`v=sqrt((2gh)/(1+(K^(2))/(R^(2))))`,`t=(1)/(sintheta)sqrt((2h)/(g)(1+(K^(2))/(R^(2))))`