A particle moving in a straight line has speed 5U 5U\,5U m s−1^{-1}−1. It decelerates uniformly for 6 s to a speed of 2U 2U\,2U m s−1^{-1}−1, maintains this speed for 16 s, and then decelerates uniformly to rest in a further 2 s.
Sketch a velocity-time graph for the motion.
Find expressions for the magnitudes of the two decelerations in terms of UUU.
Given that the total distance travelled is 220 m, find UUU.
85 exam-style questions on CCEA A Level Maths 2.2 Kinematics, covering 2.2.1 Kinematics, 2.2.2 Kinematics, 2.2.3 Kinematics, and 2.2.4 Kinematics. Each one has a worked solution and a mark scheme showing where the marks go.