A basketball of mass 0.40 kg is dropped from rest from a height of 1.22 m. It re

Question

A basketball of mass 0.40 kg is dropped from rest from a height of 1.22 m. It rebounds to a height of 0.52 m.
(a) How much mechanical energy was lost during the collision with the floor?
1____________ J

(b) A basketball player dribbles the ball from a height of 1.22 m by exerting a constant downward force on it for a distance of 0.13 m. In dribbling, the player compensates for the mechanical energy lost during each bounce. If the ball now returns to a height of 1.22 m, what is the magnitude of the force?
2___________ N

Explanation / Answer

a) mg(1.22-0.52) =2.744J b)0.4*9.8 =3.92 N

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