A body of moment of inertia of 3kg-m2 rotating with an angular speed of 2 rad/sec has the same kinetic energy as a mass of 12 kg moving with a speed of

A body of moment of inertia of 3kg-m2 rotating with an angular speed of 2 rad/sec has the same kinetic energy as a mass of 12 kg moving with a speed of (a)           1 m/s (b)          2 m/s (c)           4 …