A motorised buggy travels in a straight line and pulls a tape through a ticker timer. Adjacent dots are made 0.020 s apart. On one section of the tape, five consecutive time intervals cover 4.0 cm. On a later section, five consecutive time intervals cover 7.0 cm. The times at the centres of the two sections are 0.30 s apart.
What is the average acceleration of the buggy between these two speed measurements?
3.0 m/s23.0\ \mathrm{m/s^2}3.0 m/s2
2.3 m/s22.3\ \mathrm{m/s^2}2.3 m/s2
1.0 m/s21.0\ \mathrm{m/s^2}1.0 m/s2
0.30 m/s20.30\ \mathrm{m/s^2}0.30 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.