a solid cylindrical flywheel is 1.2m in diameter and has a m

a solid cylindrical flywheel is 1.2m in diameter and has a mass of 910kg.If the axle is 150mm i...
a solid cylindrical flywheel is 1.2m in diameter and has a mass of 910kg.If the axle is 150mm in diameter and the coefficient of journal friction is 0.15,find the time required for the flywheel to coast to rest from speed of 500rev/min.