A firework rocket starts from rest at ground level and moves vertically. In the first 3 s of its motion, the rocket rises 27 m. The rocket is modelled as a particle moving with constant acceleration a m s−2a \text{ m s}^{-2}a m s−2.
Find the value of aaa.
Find the speed of the rocket 3 s after it has left the ground.
After 3 s, the rocket burns out. The motion of the rocket is now modelled as that of a particle moving freely under gravity. Find the height of the rocket above the ground 5 s after it has left the ground.
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.