In Figure above, a child stands on the edge of a stationary merry-go-round of radius . The rotational inertia of the merry-go-round about its rotation axis is • The child catches a ball of mass thrown by a friend. Just before the ball is caught, it has a horizontal velocity of magnitude , at angle with. a line tangent to the outer edge of the merry-go-round, as shown. What is the angular speed (in rad/sec) of the merry-go-round just after the ball is caught?
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