An electric hatchback decelerates to a stop. The average braking force applied is 4800 N4800\text{ N}4800 N. The braking distance is 15 m15\text{ m}15 m.
Calculate the work done by the brakes to stop the hatchback. Include the correct unit.
Use the equation:
work done=force×distance \text{work done} = \text{force} \times \text{distance} work done=force×distanceA loaded delivery truck is travelling at the same speed as the hatchback. The truck also stops in the same distance (15 m15\text{ m}15 m). Explain why the truck requires a larger braking force than the hatchback.
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.