Physics (AS & A Level) · Oct / Nov 2023 · Paper 11 · Question 8

A ball of mass 200 g is thrown horizontally with a speed of 20 m s⁻¹ against a vertical wall. The ball is in contact with the wall for a time of 0.10 s before rebounding back along its original path with a speed of 10 m s⁻¹. What is the average force exerted by the wall on the ball during the collision?

1. A20 N
2. B60 N
3. C20 kN
4. D60 kN

As printed in the paper