A ring rotates without slipping on a horizontal smooth surface, the ratio of translational energy to the total energy of the ring is

Options

A. 2
B. `1//2`
C. 4
D. `1//4`

Answer

B

Explanation

`(KE_("lin"))/(KE_("total"))=(1)/(1+K^(2)//R^(2))=(1)/(1+1)=(1)/(2)`.