Mathematics · May / June 2021 · Paper 41 · Question 2
0580
As printed in the paper
The question as text
The diagram shows the speed−time graph for the first 180 seconds of a train journey. 0 0 9 50 100 150 Time (s) Speed (m/s) 200 250 300 2
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
2(a)[1]
0.18 or 9 50 [1]
2(b)[2]
1000 1944 × 3600 3600 × 9 ÷ 0.15 = 60 [2]
M1 M1
2(c)[1]
240 [1]
ruled line to axis with point of contact at 240
2(d)[4]
6.9375 [4]
M2 for area = 1 2 × ( 130 + 240 ) × 9 oe
or M1 for one correct partial area M1dep for their total area ÷ 240
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