A train moves along a straight horizontal track with constant acceleration.
Its speed increases from 6 m s−1^{-1}−1 to 20 m s−1^{-1}−1 in 7 seconds.
Find the acceleration of the train.
265 exam-style questions on AQA A Level Maths 3.2 Q: Kinematics, covering 3.2.1 Language of kinematics, 3.2.2 Graphs in kinematics, 3.2.3 Constant acceleration formulae, 3.2.4 Calculus in kinematics (A-level only), and 3.2.5 Motion under gravity and projectiles (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.