(a(i))[1]
Calculate the horizontal component of $u$.
(a(ii))[1]
Calculate the vertical component of $u$.
(b)[2]
Show that the maximum height reached by the ball is $4.3\,\text{m}$.
(c)[4]
Determine the magnitude of the displacement $PQ$.
Physics 9702 · AS & A Level · Equations of motion
Equations of motion — practice question
A ball is projected from point $P$ with an initial velocity $u$ of $12\,\text{m s}^{-1}$ at $50^\circ$ above the horizontal, as shown in Fig. 2.1. The ball attains its greatest height at $Q$. Air resistance is negligible.
Worked solution & mark scheme
This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Horizontal component $= 12\cos 50^\circ = 7.7\ \text{m s}^{-1}$” …
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