A horizontal camera rig can turn about a pivot. The weight of the rig's frame acts through the pivot. The table shows three other downward forces acting on the rig.
| Part of the rig | Force in N | Position relative to the pivot | Perpendicular distance from the pivot in m |
|---|---|---|---|
| Motor unit | 160 | Left | 0.45 |
| Control unit | 90 | Left | 0.90 |
| Camera | 75 | Right | 1.60 |
A battery is attached 1.10 m to the right of the pivot. The rig is balanced.
Calculate the downward force exerted by the battery.
124 exam-style questions on AQA GCSE Physics 5.4 Moments, levers and gears, covering 5.4 Moments, levers and gears. Each one has a worked solution and a mark scheme showing where the marks go.