Physics (AS & A Level) · May / June 2017 · Paper 12 · Question 6

A ball is set in motion at P on a frictionless surface. It moves up slope PQ, along the horizontal surface QR and finally descends slope RS. Which graph could represent the variation with time t of the ball's speed v as the ball moves from P to S?

1. AGraph A: v decreases linearly from a maximum, then is constant, then increases linearly
2. BGraph B: v decreases, then decreases less steeply, then increases
3. CGraph C: v decreases linearly, then is constant, then increases steeply
4. DGraph D: v increases from zero, then increases more steeply

As printed in the paper