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3 Mechanics

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Question 4

A football is kicked with speed U ms−1U \text{ ms}^{-1}U ms−1 from a point A A\,A on a roof, 15 m above the level ground. The ball is projected at an angle of 30∘ 30^\circ\,30∘ above the horizontal. The point B B\,B is the greatest height reached by the ball, which is 8 m vertically above AAA.

a.

Find the value of UUU.

[3]
b.

Find the horizontal distance travelled by the ball before it hits the ground.

[6]
c.

Find the speed of the ball when it hits the ground.

[3]
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3 Mechanics Questions

  1. A Level
  2. /Maths
  3. /3 Mechanics

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