At the start of your throw of a 5.0-kg bowling ball, your arm is straight behind you and horizontal (Figure 1). Your arm is 0.64 m long, has a rotational inertia of 0.48 kg⋅m2 , and has a mass of 3.5 kg with its center of mass 0.28 m from your shoulder joint. Determine the rotational acceleration of your arm at the start of your throw if the muscle is relaxed.
