Question

A solid cylinder, of mass 2 kg and radius 0.1 m, rolls down an inclined plane of height 3 m. Calculate its rotational energy when it reaches the foot of the plane.

Answer 1

Data : M = 2 kg, R = 0.1 m, h = 3 m, g = 10 m/s²

At the foot of an inclined plane, the speed ofa circular body rolling down the inclined plane from a height h is

The rotational energy of the sphere,

The rotational energy of the sphere,