Physics (AS & A Level) · May / June 2018 · Paper 12 · Question 8

A tennis ball of mass 55 g is travelling horizontally with a speed of 30 m s–1. The ball makes contact with a wall before rebounding in the horizontal direction with a speed of 20 m s–1. The ball is in contact with the wall for a time of 5.0 × 10–3 s. What is the average force exerted on the wall by the ball?

1. A110 N
2. B220 N
3. C330 N
4. D550 N

As printed in the paper