Two electric tugs, P and Q, pull baggage trailers across an airport. Each tug exerts a steady force in the direction of motion.
| Tug | Force in N | Distance moved in m | Time taken in s |
|---|---|---|---|
| P | 6200 | 45 | 50 |
| Q | 5400 | 60 | 54 |
Calculate which tug has the greater mean useful power output and by how much.
128 exam-style questions on Edexcel GCSE Physics 8.3 Power and efficiency, covering 8.3.1 Power and 8.3.2 Efficiency. Each one has a worked solution and a mark scheme showing where the marks go.