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3 Mechanics

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Question 45

A particle Q Q\,Q is projected with speed U ms−1U \text{ ms}^{-1}U ms−1 from a point AAA, 30 m above the ground. Q Q\,Q is projected at an angle of 45∘ 45^\circ\,45∘ to the horizontal. B B\,B is the greatest height reached by QQQ, 15 m above AAA.

a.

Find the value of UUU.

[3]
b.

Find the horizontal distance travelled.

[4]
c.

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

[3]
Markscheme

3 Mechanics Questions

  1. A Level
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