Question

a body whose moment of inertia is 3.0 kg/m2 is at rest. It rotated for 20 s by a torque of 6.0 Nm. Calculate the (i) angulardisplacement of the body in 20 s. (ii) angularmomentum of the body at 20 s. Is the angular momentum of the body constant ?„explain.(iii) work done by the torque.