An autonomous cargo drone is brought to rest on a landing deck by a capturing cable. The cable exerts an average resisting force of 6.4 kN6.4\text{ kN}6.4 kN. The stopping distance of the drone is 12.5 m12.5\text{ m}12.5 m.
Calculate the work done by the capturing cable to bring the drone to rest. Include the correct unit in your answer.
Use the equation:
work done=force×distance \text{work done} = \text{force} \times \text{distance} work done=force×distanceA much heavier passenger drone is travelling at the same speed as the cargo drone. This passenger drone is also brought to rest in the same distance of 12.5 m12.5\text{ m}12.5 m. Explain why the capturing cable must exert a larger average resisting force on the passenger drone.
28 exam-style questions on OCR GCSE Physics Work done. Each one has a worked solution and a mark scheme showing where the marks go.