A tennis ball of mass 45.0 g is held just above a basketballof mass 612 g. With their centers vertically aligned, both arereleased from rest at the same moment, to fall through a distanceof 1.03 m, as shown in the figure below.
(a) Find the magnitude of the downward velocity with which thebasketball reaches the ground. Assume an elastic collision with theground instantaneously reverses the velocity of the basketballwhile the tennis ball is still moving down

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