(2) PQRS is a quadrilateral and M is the midpoint of PS.
PQ = a, QR = b and SQ = a – 2b.
(a) Show that PS = 2b.
Answer(a)
[1]
(b) Write down the mathematical name for the quadrilateral PQRM,giving reasons for your answer.
Answer(b)..............................................................because...............................................................
.............................................................................................................................................................[2]
__________
A tram leaves a station and accelerates for 2 minutes until itreaches a speed of 12 metres per second.
It continues at this speed for 1 minute.
It then decelerates for 3 minutes until it stops at the nextstation.
The diagram shows the speed-time graph for this journey.
Calculate the distance, in metres, between the two stations
