A test vehicle is driven on a level road. The driver's reaction time is the same in every test.
When the vehicle travels at 14 m/s, the thinking distance is measured as 9.8 m.
Calculate the thinking distance when the vehicle travels at 25 m/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.