Mathematics 9709 · AS & A Level · Representation of data
Representation of data — practice question
The projectile’s path is given by $y = 0.6x - 0.017x^2$, with the axes taken as horizontal and vertically upward through the point of projection.
(i)[3]
Determine the projectile’s angle of projection, and show that the initial speed is $20\,\text{m s}^{-1}$.
(ii)[7]
Determine the speed and direction of the projectile when it is at a height of $5.2\,\text{m}$ above the level of the point of projection for the second time.
Worked solution & mark scheme
This 10-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Projection angle: $\theta = \tan^{-1}0.6$” …