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Sahay Sir > Question Answers > NCERT Exemplar Class 11 > Physics > Chapter 6 - System of Particles and Rotational Motion > 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 ? (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.

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 ? (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.

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. To maintain a rotor at a uniform angular speed of 200 rad s^−1