A car travels at 18 m/s. Its stopping distance is 45 m and its braking distance is 31.5 m. What is the reaction time of the driver?
1.33 s1.33\ \mathrm{s}1.33 s
1.75 s1.75\ \mathrm{s}1.75 s
2.50 s2.50\ \mathrm{s}2.50 s
0.75 s0.75\ \mathrm{s}0.75 s
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.