A vertical lift system in an automated warehouse is used to raise a robotic shuttle to an upper gallery. The gravitational potential energy of the shuttle increases by 3.8 kJ as it is raised.
State the amount of useful work done by the lift system on the robotic shuttle.
57 exam-style questions on Edexcel GCSE Physics 8.1 Energy transfers and work, covering 8.1.1 Energy stores and transfer diagrams, 8.1.2 Ways of changing a system's energy, and 8.1.3 Work done by forces. Each one has a worked solution and a mark scheme showing where the marks go.