A cyclist travelling in a straight line increases her velocity from 6.0 m/s to 18 m/s in 4.0 s.
What is her average acceleration?
1.5 m/s21.5\ \mathrm{m/s^2}1.5 m/s2
3.0 m/s23.0\ \mathrm{m/s^2}3.0 m/s2
4.5 m/s24.5\ \mathrm{m/s^2}4.5 m/s2
6.0 m/s26.0\ \mathrm{m/s^2}6.0 m/s2
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.