A cargo aircraft makes an outward flight carrying equipment. The equipment is unloaded before the return flight.
The table gives data for the aircraft while cruising on each flight.
| Flight | Mass of aircraft (kg) | Speed (m/s) |
|---|---|---|
| outward | 16 000 | 75 |
| return | 12 500 | 90 |
Calculate the percentage increase in the kinetic energy of the aircraft from the outward flight to the return flight.
121 exam-style questions on Edexcel GCSE Physics 3.1 Energy stores and calculations, covering 3.1.1 Gravitational potential energy, 3.1.2 Kinetic energy, and 3.1.3 Energy transfers and conservation of energy. Each one has a worked solution and a mark scheme showing where the marks go.