The flywheel of a steam engine has a radius of gyration 2 m and mass 2000 kg. The starting torque of the steam engine is 4000 N-m and is constant. Determine the angular acceleration of the flywheel:
1
0.5 rad/s2
2
0.4 rad/s2
3
0.2 rad/s2
4
0.8 rad/s2