A body is rolling down an inclined plane. Its translational and rotational kinetic energies are equal. The body is not a
(1) solid sphere (2) hollow sphere
(3) solid cylinder
(4) hollow cylinder

Options

A. Solid sphere
B. Hollow sphere
C. Solid cylinder
D. Hollow cylinder

Answer

D

Explanation

`K_(T)= K_(R)`
`rArr (1)/(2) mv^(2) = (1)/(2) mv^(2) ((K^(2))/(R^(2)))`
`rArr` K = R hollow cylinder.