Physics 9702 · AS & A Level · Equilibrium of forces

Equilibrium of forces — practice question

A ladder is in equilibrium, with one end on rough ground and the other against a rough wall. Its weight $W$ acts through the centre of gravity $G$. In addition, forces act on the ladder at $P$ and at $Q$. These forces are $P$ and $Q$ respectively. Which vector triangle shows the forces acting on the ladder?

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