Physics (AS & A Level) · Oct / Nov 2018 · Paper 11 · Question 12

A ladder rests in equilibrium on rough ground against a rough wall. The weight W of the ladder acts through the centre of gravity G. Forces also act on the ladder at P and at Q. These forces are P and Q respectively. Which vector triangle represents the forces on the ladder?

1. AVector triangle with P pointing down-left, W pointing down, Q pointing up-right
2. BVector triangle with P pointing down-left, Q pointing up-right, W pointing down
3. CVector triangle with P pointing up-right, W pointing down, Q pointing up-right
4. DVector triangle with P pointing down-left, W pointing up, Q pointing down

As printed in the paper