Physics (AS & A Level) · Oct / Nov 2021 · Paper 13 · Question 13

A sign outside a shop is suspended from a rusty horizontal hinge at its top end. The sign hangs in equilibrium at an angle of 25° to the vertical, as shown. The sign is a square of side length 52 cm and uniform thickness. It has a mass of 36 kg. What is the moment of the weight of the sign about the hinge?

1. A39 N m
2. B78 N m
3. C83 N m
4. D92 N m

As printed in the paper