O-LevelPhysicsKinematics5054/21 · May/June 2015 · Q16 Marks
Fig. 1.1 shows the distance-time graph for two cyclists A and B. They start a 500m race together but finish the race at different times. [Figure 1.1]
- (a)(i)the distance between A and B at time t = 20s,[1]
- (a)(ii)the difference in the time taken by A and B for the race.[1]
- (b)(i)On Fig. 1.1, draw the distance-time graph for cyclist C.[2]
- (b)(ii)Calculate the average speed of cyclist C for the whole race.[2]
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
Mark scheme
Marking points from the official mark scheme (May/June 2015). The mark or mark type is shown in brackets.
- [1] 60 m
- [1] 12 s
- [1] straight line from origin to 200 m at 40 s
- [1] any line straight or curved from (40,200) to (60,500)
- [1] s = d/t or 500/60
- [1] 8.3m/s
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