A ball rolls without slipping. The radius of gyration of the ball about an axis passing through its centre of mass is `k`. If radius of the ball be `R`, then the fraction of total energy associated with its rotation will be.

Options

A. `(R^(2))/(R^(2)+k^(2)`
B. `(k^(2))/(R^(2)+k^(2)`
C. `(R^(2))/(k^(2)`
D. `(k^(2))/(R^(2)`

Answer

B