To maintain a rotor at a uniform angular speed of 200 rad s an engine needs to transmit a torque of 180 Nm What is the power

Question

To maintain a rotor at a uniform angular speed of 200 rad s an engine needs to transmit a torque of 180 Nm What is the power required by the engine Note uniform angular velocity in the absence of fric tion implies zero torque In practice applied torque is needed to counter frictional torque Assume that the engine is 100 efficient NCERT 36 kW

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