A ball falls to the ground from height h and bounces to height h'.Momentum is conserved in the ball-earth system A)no matter what height h' it reaches. B)only if h' h. E)only if h' $\ge$ h.

Question

A ball falls to the ground from height h and bounces to height h'.Momentum is conserved in the ball-earth system
A)no matter what height h' it reaches.
B)only if h' < h.
C)only if h' = h.
D)only if h' > h.
E)only if h' $\ge$ h.

Quizplus · Accepted Answer

In an isolated system, momentum is always conserved regardless of the heights involved. The ball-earth system is isolated, so momentum is conserved no matter what height h' the ball reaches after bouncing.

A Ball Falls to the Ground from Height H and Bounces