A motor uses a cable to raise a theatre scenery panel vertically through guide rails. The panel moves at constant speed throughout and has a weight of 600 N.
| Stage | Vertical distance moved | Cable force |
|---|---|---|
| 1 | 2.0 m | 900 N |
| 2 | 3.0 m | 700 N |
Calculate the mean frictional force exerted by the guide rails on the panel.
113 exam-style questions on AQA GCSE Physics 5.2 Work done and energy transfer, covering 5.2 Work done and energy transfer. Each one has a worked solution and a mark scheme showing where the marks go.