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A particle is projected at a speed of $24\,\text{m s}^{-1}$ at an angle of $30^\circ$ above the horizontal. Determine the speed and the direction of motion of the particle at the instant $4\,\text{s}$ after projection.
Mathematics 9709 · AS & A Level · Probability
A particle is projected at a speed of $24\,\text{m s}^{-1}$ at an angle of $30^\circ$ above the horizontal. Determine the speed and the direction of motion of the particle at the instant $4\,\text{s}$ after projection.
This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “From horizontal motion, obtain $x' = 24\cos 30 = 12\sqrt{3}$” …