A launch carriage moves along a straight test track. Its velocity increases uniformly from 18 km/h to 54 km/h over a displacement of 25 m.
Use g=10 m/s2g=10\ \mathrm{m/s^2}g=10 m/s2.
Calculate the acceleration of the launch carriage as a percentage of the acceleration of free fall.
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.