A gate is 1.2 m wide and is hinged along one edge. A force of 15 N is applied at right angles to the gate, one quarter of the way across the gate from the hinge. What is the moment of the force about the hinge?
4.5 N m4.5\ \text{N m}4.5 N m
18 N m18\ \text{N m}18 N m
13.5 N m13.5\ \text{N m}13.5 N m
1.25 N m1.25\ \text{N m}1.25 N m
40 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.