A wheel is disconnected from a motor and come to rest from 12,000 rpm because of a 1.10 m·N frictional torque. If the mass of the wheel is 4.4 kg and we assume the wheel is a solid cylinder of radius 63 mm,
what is its moment of inertia?
kg·m2
How long will it take to come to rest?
s
How many revolutions has the wheel turned before coming to rest?