Mathematics (AS & A Level) · Oct / Nov 2020 · Paper 42 · Question 4
9709
As printed in the paper
The question as text
t (s) v (m s−1) V 20 00 T The diagram shows a velocity-time graph which models the motion of a car. The graph consists of four straight line segments. The car accelerates at a constant rate of 2 m s−2 from rest to a speed of 20 m s−1 over a period of T s. It then decelerates at a constant rate for 5 seconds before travelling at a constant speed of V m s−1 for 27.5 s. The car then decelerates to rest at a constant rate over a period of 5 s.
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
4(a)[1]
4(b)[4]
Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.