A test capsule of mass 200 kg moves down a vertical shaft. Its speed at the start of the descent is 5.0 m/s. It descends through a vertical height of 7.2 m. Assume that no energy is dissipated during the descent. Gravitational field strength, g=10 N/kgg=10\ \text{N/kg}g=10 N/kg. Calculate the speed of the capsule at the bottom of the shaft.
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.