Question

A uniform thin ring of mass 0.4 kg rolls without slipping on a horizontal surface with a linear velocity of 10 cm/*. The kinetic energy of the ring is -

(a) 4 × 10–3 joules

(b) 4 × 10–2 joules

(c) 2 × 10–3 joules

(d) 2 × 10–2 joules

Answer 1

Correct option: (a) 4 × 10–3 joules

Explanation:

Kinetic energy of a rolling body (E)