A workboat passes a marker buoy while travelling along a straight channel at a constant speed of 2.0 m/s. A second workboat follows the same route and passes the buoy 30 s later, travelling in the same direction at a constant speed of 3.5 m/s.
How far does the first workboat travel after the second workboat passes the buoy and before it is overtaken?
80 m80\ \mathrm{m}80 m
60 m60\ \mathrm{m}60 m
140 m140\ \mathrm{m}140 m
45 m45\ \mathrm{m}45 m
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.