A minibus is tested twice on a test track. Its mass is unchanged and the mean braking force is the same in both tests.
| Test | Data |
|---|---|
| 1 | initial speed =16 m/s; braking distance =20 m |
| 2 | initial speed =24 m/s; driver's reaction time =0.75 s |
Calculate the stopping distance of the minibus in test 2.
126 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.