Question 188: Centre of Mass and Rotational Motion

Question

A body rolls down an inclined plane without slipping. The kinetic energy of rotation is 50% of its translational kinetic energy. The body is :

Accepted Answer

$${1 \over 2}I{\omega ^2} = {1 \over 2} 	imes {1 \over 2}m{v^2}$$
$$I = {1 \over 2}m{R^2}$$
Body is solid cylinder

Answer

Solid sphere

Answer

Solid cylinder

Answer

Hollow cylinder

Answer

Ring

Centre of Mass and Rotational Motion