An engineering team is testing the emergency braking system of a prototype autonomous warehouse vehicle. Table 1 shows the recorded braking distances, ddd, in metres, over five consecutive test runs under identical speed and load conditions on a flat concrete surface.
| Test Run | Braking distance ddd (m) |
|---|---|
| 1 | 2.15 |
| 2 | 2.11 |
| 3 | 3.98 |
| 4 | 2.18 |
| 5 | 2.09 |
Identify the anomalous value of the braking distance shown in Table 1.
39 exam-style questions on Edexcel GCSE Physics 2.5 Stopping and braking distances, covering 2.5.1 Stopping distance and reaction time, 2.5.2 Factors affecting stopping distance, 2.5.3 Dangers of large decelerations, and 2.5.4 Braking distance and initial speed. Each one has a worked solution and a mark scheme showing where the marks go.