Mathematics (AS & A Level) · Oct / Nov 2021 · Paper 42 · Question 1
9709
As printed in the paper
The question as text
t (s) v (m s−1) 60 50 T 30 25 5 0 0 6 20 The diagram shows a velocity-time graph which models the motion of a car. The graph consists of six straight line segments. The car accelerates from rest to a speed of 20 m s−1 over a period of 5 s, and then travels at this speed for a further 20 s. The car then decelerates to a speed of 6 m s−1 over a period of 5 s. This speed is maintained for a further T −30 s. The car then accelerates again to a speed of 20 m s−1 over a period of 50 −T s, before decelerating to rest over a period of 10 s.
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
1(a)[2]
1(b)[2]
Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.