Physics (AS & A Level) · May / June 2024 · Paper 12 · Question 15

A box of weight W is pulled by a force P along a slope. The length of the slope is d, and the box rises a height h. The frictional force between the box and the slope is F. The diagram shows the directions of the forces. The purpose of the slope is to raise the box vertically. Which expression gives the efficiency of the slope?

1. AFd/Wh
2. BPd/Wh
3. CWh/Fd
4. DWh/Pd

As printed in the paper