Physics (AS & A Level) · Oct / Nov 2019 · Paper 12 · Question 7
9702Momentum and Newton’s laws of motion
A snooker ball has a mass of 200 g. It hits the cushion of a snooker table and rebounds along its original path. The ball arrives at the cushion with a speed of 14.0 m s⁻¹ and then leaves it with a speed of 7.0 m s⁻¹. The ball and the cushion are in contact for a time of 0.60 s. What is the average force exerted on the ball by the cushion?
- A1.4 N
- B2.3 N
- C4.2 N
- D7.0 N
As printed in the paper
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Correct answer: D. 7.0 N
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