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A particle is launched from level ground with speed $15\,\text{m s}^{-1}$ at an angle of $40^\circ$ above the horizontal. Calculate how long the particle takes to strike the ground.
Mathematics 9709 · AS & A Level · Representation of data
Representation of data — practice question
Worked solution & mark scheme
This 2-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Applies the equation of motion $0=(15\sin40^\circ)t-\tfrac{1}{2}gt^2$, or states the time of flight formula $T=\dfrac{2V\sin\theta}{g}$” …
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