Physics · Oct / Nov 2022 · Paper 22 · Question 1

A train travels along a straight horizontal track. At time t = 0, the train passes through station P at constant speed without stopping. The driver applies the brakes 70 s before reaching station Q. The train decelerates. Fig. 1.1 is the speed–time graph for the train from t = 0 until it stops at station Q. 0 0 20 40 60 80 20 40 60 80 100 120 140 train passes through station P train reaches station Q t / s speed m / s Fig. 1.1

Read automatically from the paper; the printed page above is exact.