Question

To maintain a rotor at a uniform angular speed of 200 rad s^-1 an engine needs to transmit a torque of 180 N m. What is the power required by the engine? Assume that the engine is 100% efficient.

Answer 1

Here ω = 200 rad s , \(\tau\)= 180 N m Power, 

P = τω = 180 x 200 = 36,000 W = 36 kW.