If rotational kinetic energy is `50%` of total kinetic energy then the body will be

Options

A. Ring
B. Cylinder
C. Hollow sphere
D. Solid sphere

Answer

B

Explanation

`K_(R)= (1)/(2) K_(T)`
`rArr (1)/(2) mv^(2) ((K^(2))/(R^(2)))= (0.5) (1)/(2) mv^(2)`
`rArr K^(2)= 0.5 R^(2)= (R^(2))/(2)`
Solid cylinder or disc.