A cricket ball is struck from a point OOO, which is 2.2 m above the horizontal ground. The ball is projected with speed U ms−1U \text{ ms}^{-1}U ms−1 at an angle α∘ \alpha^\circ\,α∘ to the horizontal. In its subsequent motion, the ball reaches a maximum height of 5.2 m above the ground. The ball passes over a fielder standing at point AAA, which is 1.2 m above the ground and at a horizontal distance of 20 m from OOO. The ball is modeled as a particle moving under gravity.
Find the value of UUU.
Find the size of angle α\alphaα.
State one limitation of the model that could affect the accuracy of your answers.
Practise Edexcel A Level Maths Projection at Any Angle with exam-style questions for A Level Maths. 62 questions, matched to the Edexcel A Level Maths (9MA0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
