It takes 10 min for a 6000-lb flywheel to coast to rest from an angular velocity of 300 rpm….
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It takes 10 min for a 6000-lb flywheel to coast to rest from an angular velocity of 300 rpm. Knowing that the radius of gyration of the flywheel is 36 in., determine the average magnitude of the couple due to kinetic friction in the bearings.
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