= 4. Consider a fixed pulley with smooth bearings, having mass mo = 2.00 kg and radius R = 0.10 m. A light, inextensible rope is affixed to the pulley, with one end anchored to it, and the other end attached to an object of mass m = 5.00 kg. It is given that the moment of inertia of the fixed pulley is I = moR2/2, and its initial angular velocity is wo 10.0 rad/s with the direction perpendicular to the paper (see the right Figure). Find: (a) The angular acceleration of the fixed pulley; (b) The height to which the object rises when the angular velocity of the fixed pulley becomes w = 0; (c) The angular velocity of the fixed pulley when the object returns to its original position. mo R m 3