A tram moves along a straight track towards a stop. Over a period of 6.0 s its velocity falls steadily from 12 m/s to 3.0 m/s.
The direction in which the tram is moving is taken as positive.
What is the acceleration of the tram during this period?
+1.5 m/s2+1.5\ \mathrm{m/s^2}+1.5 m/s2
−2.0 m/s2-2.0\ \mathrm{m/s^2}−2.0 m/s2
−2.5 m/s2-2.5\ \mathrm{m/s^2}−2.5 m/s2
−1.5 m/s2-1.5\ \mathrm{m/s^2}−1.5 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.