(i)[5]
Calculate the speed and direction of motion of $B$ at $1.8\,\text{s}$ after projection.
(ii)[3]
Point $O$ is $2\,\text{m}$ above a horizontal plane. Calculate the time after projection at which $B$ reaches the plane.
Mathematics 9709 · AS & A Level · Probability
Probability — practice question
A small ball $B$ is launched from point $O$ at a speed of $14\,\text{m s}^{-1}$ and at an angle of $60^\circ$ above the horizontal.
Worked solution & mark scheme
This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Correct vertical component of velocity $V_y = 14\sin60 - 1.8g$” …
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