Water weighing 180 000 N180\,000\text{ N}180000 N is pumped up to a storage tank on top of a building.
The water moves upwards through a vertical height of 12.5 m.
The useful power developed by the electric pump is 2500 W.
Calculate the time needed to pump this volume of water into the tank.
26 exam-style questions on Edexcel GCSE Physics 8.3 Power and efficiency. Each one has a worked solution and a mark scheme showing where the marks go.