Physics (AS & A Level) · Feb / March 2018 · Paper 12 · Question 10

Steel pellets, each with a mass of 0.60 g, fall vertically onto a horizontal plate at a rate of 100 pellets per minute. They strike the plate with a velocity of 5.0 m s⁻¹ and rebound with a velocity of 4.0 m s⁻¹. What is the average force exerted on the plate by the pellets?

1. A0.0010 N
2. B0.0054 N
3. C0.0090 N
4. D0.54 N

As printed in the paper