O-LevelMathematicsAlgebra and graphs4024/12 · May/June 2014 · Q204 Marks
The diagram shows the speed-time graph for 100 seconds of a car's journey. The car accelerates uniformly from a speed of v m/s to a speed of 3v m/s in 50 seconds. It then continues at a constant speed. [Figure 20.1]
- (a)Find, in terms of v, the acceleration of the car in the first 50 seconds.[1]
- (b)The car travels 2500 metres during the 100 seconds. Find v.[2]
- (c)Find the speed of the car, in kilometres per hour, when t = 75.[1]
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 2014). The mark or mark type is shown in brackets.
- [1] v⁄25
- [2] 10
- [2] B1 for any correct expression for one area
- [1FT] 108
Write your answer and get it marked
On Oracle Prep you can write or photograph your own answer and have it marked by AI against this mark scheme, with feedback on what you missed.
Sign up free →