A repairer uses a light, horizontal lever to raise a hatch. The lever can turn about a pivot. A downward effort of 42 N acts 0.70 m to the left of the pivot. The hatch exerts a downward force of 160 N on the lever, 0.20 m to the right of the pivot.
Calculate the moment due to each force about the pivot and state which way the lever starts to turn.
102 exam-style questions on Edexcel GCSE Physics 9.2 Moments, covering 9.2.1 Rotational effects of forces and moments, 9.2.2 The principle of moments, and 9.2.3 Levers and gears. Each one has a worked solution and a mark scheme showing where the marks go.