Torque and Radius of Gyration
Torque and Angular Speed Power
To maintain a rotor at a uniform angular speed of 200 rad/s, an engine needs to transmit a torque of 180 N-m. What is the power required by the engine? (Note: uniform angular velocity in the absence of friction implies zero torque. In practice, applied torque is needed to counter frictional torque). Assume that the engine is 100% efficient.