The table gives data from four speed skaters during straight parts of a race. Each skater moves in the same direction and changes velocity uniformly throughout the stated interval.
| Skater | Velocity at start in m/s\mathrm{m/s}m/s | Velocity at end in m/s\mathrm{m/s}m/s | Time interval in s\mathrm{s}s |
|---|---|---|---|
| A | 5.0 | 12.0 | 2.0 |
| B | 7.0 | 15.0 | 4.0 |
| C | 4.0 | 13.0 | 3.0 |
| D | 8.0 | 14.0 | 2.4 |
Which skater has the greatest acceleration during the interval?
Skater B
Skater A
Skater D
Skater C
96 exam-style questions on Edexcel GCSE Physics 2.2 Speed, velocity and acceleration, covering 2.2.1 Speed and distance–time graphs, 2.2.2 Acceleration and the uniform-acceleration equation, 2.2.3 Velocity–time graphs, and 2.2.4 Measuring speed, typical speeds and free-fall acceleration. Each one has a worked solution and a mark scheme showing where the marks go.