The 200-lb flywheel has a radius of gyration about its center of gravity O of kO = 0.75...

The 200-lb flywheel has a radius of gyration about its center of gravity O of k_O = 0.75 ft. If it rotates counterclockwise with a constant angular velocity of 1200 rev/min before the brake is applied, determine the required force P that must be applied to the handle to stop the wheel in 2 s. The coefficient of kinetic friction between the belt and the wheel rim is = 0.3. (Hint: Recall from the statics text that the relation of the tension in the belt is given by is the angle of contact in radians.)