A tram is tested twice using the same constant resultant braking force. In the second test it carries more passengers, so its mass is 1.25 times its mass in the first test, and it brakes from 1.6 times its speed in the first test. Its braking distance in the second test is 96.0 m. What was its braking distance in the first test?
37.5 m37.5\ \mathrm{m}37.5 m
60.0 m60.0\ \mathrm{m}60.0 m
48.0 m48.0\ \mathrm{m}48.0 m
30.0 m30.0\ \mathrm{m}30.0 m
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.