A car is travelling at 15 m/s. The reaction time of the driver is 0.60 s and the braking distance of the car at this speed is 15 m.
Calculate the stopping distance of the car at 15 m/s.
The same car travels at 30 m/s. The reaction time of the driver and the braking force are unchanged. Calculate the new stopping distance.
Explain why doubling the speed increases the braking distance by a larger factor than the thinking distance.
38 exam-style questions on AQA GCSE Physics 5.6 Forces and motion, covering 5.6.1 Describing motion along a line, 5.6.2 Forces, accelerations and Newton's Laws of motion, and 5.6.3 Forces and braking. Each one has a worked solution and a mark scheme showing where the marks go.