A card attached to a trolley passes through a light gate. The data logger records the time for which the card blocks the beam.
Which calculation gives the average speed of the card while it blocks the beam?
card length along the direction of motion multiplied by blocking time
trolley length along the direction of motion divided by blocking time
card length along the direction of motion divided by blocking time
trolley length along the direction of motion multiplied by blocking time
96 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.