A playground merry-go-round has a radius of 3 m and a rotational inertia of 600 kg - m-/s. It is initially spinning at 0.8 rad/s when a 20 kg child crawls from the center to the rim. When the child reaches the rim the angular velocity of the merry-go-round is 1. 0.8 rad/ 2. 0.62 rad/s 3. 01.89 rad/= 4. 0.73 rad/F 5. 1.1 rad