What is its kinetic energy after 10 seconds under a constant torque of 1500 Nm?

Question

A flywheel of moment of inertia 2500 kgm² starts rotating from rest with acceleration of 0.6 rad/s². What is its kinetic energy after 10 seconds under a constant torque of 1500 Nm?

            (a) 45kJ                       (b) 90 kJ                      (c) 135 kJ        (d)165 kJ