A robotic logistics cart accelerates uniformly along a straight guiding track in a distribution center. A telemetry system records the exact velocity of the cart as it passes two distinct infrared beacon points, P P\,P and QQQ.
State one additional physical measurement that must be made to calculate the constant acceleration of the cart between these two points.
53 exam-style questions on Edexcel GCSE Physics 2.2 Speed, velocity and acceleration, covering 2.2.1 Speed and distance–time graphs, 2.2.2 Acceleration and the uniform-acceleration equation, 2.2.3 Velocity–time graphs, and 2.2.4 Measuring speed, typical speeds and free-fall acceleration. Each one has a worked solution and a mark scheme showing where the marks go.