Mathematics 9709 · AS & A Level · Forces and equilibrium

Forces and equilibrium — practice question

At one point, three coplanar forces with magnitudes $8\text{ N}$, $12\text{ N}$ and $2\text{ N}$ act. Their resultant has magnitude $R\text{ N}$. The diagram shows the directions of the three forces and the resultant.
(main)[7]

Find the values of $R$ and $\theta$.

Worked solution & mark scheme

This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Resolving the forces along the $x$-axis and $y$-axis” …

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