The flywheel of a steam engine has a radius of gyration of 1 m and mass 2500 kg. The starting torque of the steam engine is 1500 N-m and may be assumed constant. Determine : Kinetic energy of the flywheel after 10 seconds from the start.

• A. 50 kJ
• B. 60 kJ
• C. 45 kJ
• D. none of the mentioned