Mathematics (AS & A Level) · May / June 2016 · Paper 42 · Question 4
9709
As printed in the paper
The question as text
t (s) v (m s−1) O 6 42 52 8.2 V A sprinter runs a race of 400 m. His total time for running the race is 52 s. The diagram shows the velocity-time graph for the motion of the sprinter. He starts from rest and accelerates uniformly to a speed of 8.2 m s−1 in 6 s. The sprinter maintains a speed of 8.2 m s−1 for 36 s, and he then decelerates uniformly to a speed of V m s−1 at the end of the race.
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Show the answer and mark scheme
4(i)[2]
4(ii)[3]
4(iii)[2]
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