A wheel is mounted in a physics lab as shown above. The wheel has a mass M = 2.2 kg and radius R = 35 cm. The wheel is in the shape of a ring with rotational inertia I = MR2. A object of mass m = 5 kg is attached to the end of a string which is wrapped around an inner hub with radius r = 2.7 cm. The object is released from rest a distance h = 77 cm above the floor and begins to move downward.
Please help with C, D, and E