A cyclist travels along a straight path. The table below shows the speed readings from their speedometer every 5 s.
| Time (s\text{s}s) | 0 | 5 | 10 | 15 | 20 | 25 | 30 |
|---|---|---|---|---|---|---|---|
| Speed (m/s\text{m/s}m/s) | 6 | 4 | 2 | 0 | 0 | 0 | 0 |
Which of the following correctly describes the cyclist's motion in the first 15 s and in the last 15 s?
Motion during first 15 s15\text{ s}15 s: zero acceleration; motion during last 15 s15\text{ s}15 s: constant non-zero speed
Motion during first 15 s15\text{ s}15 s: non-zero acceleration; motion during last 15 s15\text{ s}15 s: at rest
Motion during first 15 s15\text{ s}15 s: non-zero acceleration; motion during last 15 s15\text{ s}15 s: constant non-zero speed
Motion during first 15 s15\text{ s}15 s: zero acceleration; motion during last 15 s15\text{ s}15 s: at rest
204 exam-style questions on CIE IGCSE Physics Motion, covering Motion. Each one has a worked solution and a mark scheme showing where the marks go.