A train travels 18 km in 15 minutes.
Use the equation: distance travelled=speed×time\text{distance travelled} = \text{speed} \times \text{time}distance travelled=speed×time
Calculate the average speed of the train in m/s\text{m/s}m/s.
The speed limit for trains on this part of the track is 90 km/h.
Determine whether the average speed of the train is above or below the speed limit.
Show your working.
The train then travels a further 12 km at a constant speed of 25 m/s.
Calculate the time this takes.
Give your answer in minutes.
43 exam-style questions on OCR GCSE Physics 2.1 Motion, covering 2.1.1 Measuring distance and time, 2.1.2 Measuring speed, 2.1.3 Ratios, units and rates in motion, 2.1.4 Scalars and vectors in motion, 2.1.5 Distance-time and velocity-time graphs, 2.1.6 Area under a velocity-time graph, 2.1.7 Average speed for non-uniform motion, and 2.1.8 Uniform motion and uniform acceleration. Each one has a worked solution and a mark scheme showing where the marks go.