A model train travels along a track and passes through two model stations. Students investigate the train's motion. They start a digital timer as soon as the train begins to move. They note the time when it reaches Station A and the time when it reaches Station B.
Fig. 1.1 shows the time at which Station A is entered and the time at which Station B is entered.
The display marked "time entering Station A" reads: hour min sec 00:01:22.
The display marked "time entering Station B" reads: hour min sec 00:02:34.
(a)[1]
Calculate the elapsed time from when the train enters Station A until it reaches Station B. State the answer in seconds.
(b)[3]
Calculate the average speed for the train.
(c)[4]
Determine the total distance covered by the train on this section of the track.
Worked solution & mark scheme
This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: “72\text{ s}” …