O-LevelMathematicsAlgebra and graphs4024/11 · Oct/Nov 2019 · Q234 Marks
The diagram is the speed-time graph representing part of a train's journey. [Figure X.X - speed-time graph] The train slows down uniformly from a speed of 40 m/s to a speed of 24 m/s in a time of 20 seconds. It then slows down uniformly for a further 40 seconds, until it stops.
- (a)Find the deceleration between t = 20 and t = 60.[1]
- (b)Find the speed when t = 50.[1]
- (c)Find the distance travelled from t = 0 to t = 20.[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 (Oct/Nov 2019). The mark or mark type is shown in brackets.
- [1] 3/5 oe
- [1] 6
- [2] 640
- M1 for 1/2 × 20 × (24 + 40) oe
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