Mathematics 9709 · AS & A Level · Forces and equilibrium

Forces and equilibrium — practice question

At a point, coplanar forces with magnitudes $8\,\text{N}$, $12\,\text{N}$ and $18\,\text{N}$ act in the directions indicated in the diagram.

(main)[6]

Determine the magnitude and direction of the single extra force at the same point that would bring the system into equilibrium.

Worked solution & mark scheme

This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Resolution of forces along one direction” …