A high-speed train travels along a straight track at a constant velocity of 85 m/s.
The total mass of the train is 4.2 × 105 kg.
Calculate the kinetic energy of the train at this speed. Give your answer in standard form.
82 exam-style questions on Edexcel GCSE Physics 3.1 Energy stores and calculations. Each one has a worked solution and a mark scheme showing where the marks go.