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A flywheel of mass 25 kg has a radius of...

A flywheel of mass 25 kg has a radius of 0.2 m. It is making 240 r.p.m.What is the torque necessary to bring it to rest in 20sec. If the torque is due to a force applied tangentially on the rim of the flywheel, what is magnitude of the force ? Assume that mass of the flywheel is concentrated at its rim.

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