Question

A 0.057 kg tennis ball and a tennis racket collide. The racket has an initial momentum of –1.75 kg·m/s and a final momentum of –1.25 kg·m/s. The ball has an initial momentum of 0.00684 kg·m/s. If you assume the collision is elastic, what is the final velocity of the ball?

Answer 1

Answer:8.891m/s

Explanation:

Initial momemtum of system=final momentum of system

1.75+0.00684=1.25+0.057*v

1.75684-1.25=0.057v

V=0.50684/0.057

V=8.891m/s