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)`
`implies(1)/(2)mv^(2)=(1)/(2)mv^(2)((K^(2))/(R^(2)))`
`impliesK=R` hollow cylinder.