A student investigates their reaction time using the ruler drop test. The mean distance the ruler fell before being caught by their non-dominant hand was 15.8 cm.
Calculate the average reaction time for the non-dominant hand. Give your answer to 2 significant figures.
Use the equation:
time2=distance500 \text{time}^2 = \frac{\text{distance}}{500} time2=500distance39 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.