Physics (AS & A Level) · May / June 2021 · Paper 13 · Question 7

A steel ball is dropped from rest from a height h above the ground. The ball hits the ground after a time t. This is repeated for a number of different heights. The graph shows the variation of h with t^2 for the ball. The gradient of the graph is G. Which expression gives the acceleration of the ball?

1. AG/2
2. BG
3. C2G
4. DG^2

As printed in the paper