Which statement regarding typical values of speed in real-world motion is correct?
The typical cruising speed of a commercial passenger jet airliner is approximately 1000 m s−11000\text{ m s}^{-1}1000 m s−1.
The typical speed of sound in air is less than the typical speed of a high-speed passenger train.
The typical speed of a car travelling at the national speed limit on a UK motorway is approximately 30 m s−130\text{ m s}^{-1}30 m s−1.
The typical average speed of a marathon runner is approximately 12 m s−112\text{ m s}^{-1}12 m s−1.
50 exam-style questions on OCR GCSE Physics Motion. Each one has a worked solution and a mark scheme showing where the marks go.