Three posts PPP, Q Q\,Q and RRR, are fixed in that order at the side of a straight horizontal road. The distance from P P\,P to Q Q\,Q is 45 m and the distance from Q Q\,Q to R R\,R is 120 m. A car is moving along the road with constant acceleration a m s−2a \text{ m s}^{-2}a m s−2. The speed of the car, as it passes PPP, is u m s−1u \text{ m s}^{-1}u m s−1. The car passes Q Q\,Q two seconds after passing PPP, and the car passes R R\,R four seconds after passing QQQ.
Find the value of uuu.
Find the value of aaa.
Practise Edexcel A Level Old Maths SUVAT with exam-style questions for A Level Old Maths. 6 questions, matched to the Edexcel A Level Old Maths (9371) specification and written in Unit exams C1, C2, C3 and C4 plus two applied units (e.g. S1 and M1) style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.