A driver has a reaction time of 0.50 s. After drinking alcohol, the reaction time of the driver doubles.
The driver is travelling at 20 m/s.
By how much does the thinking distance increase?
10 m10\ \text{m}10 m
20 m20\ \text{m}20 m
30 m30\ \text{m}30 m
40 m40\ \text{m}40 m
50 exam-style questions on OCR GCSE Physics 8.1 Physics on the move, covering 8.1.1 Typical everyday speeds, 8.1.2 Typical everyday accelerations, 8.1.3 Ratios, units and rates on the road, 8.1.4 Human reaction times, 8.1.5 Factors affecting stopping distance, 8.1.6 Stopping distances at different speeds, 8.1.7 Dangers of large decelerations, 8.1.8 Estimating forces in road situations, and 8.1.9 Estimating the effects of large accelerations. Each one has a worked solution and a mark scheme showing where the marks go.