An adjustable horizontal camera support can turn about a pivot. The weight of the support is negligible.
A camera exerts a downward force of 18 N at a perpendicular distance of 0.40 m to the left of the pivot. A piece of equipment exerts a downward force of 6.0 N at a perpendicular distance of 0.20 m to the right of the pivot.
A counterweight exerts a downward force of 12 N to the right of the pivot. The support is balanced.
Calculate the perpendicular distance from the pivot at which the counterweight is attached.
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.