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3.2.5 Motion under gravity and projectiles (A-level only)

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Question 49

A particle P P\,P is projected from a point on horizontal ground with velocity k(3i+4j)k(3\mathbf{i} + 4\mathbf{j})k(3i+4j) m s−1^{-1}−1, where k k\,k is a positive constant, i\mathbf{i}i is horizontal and j\mathbf{j}j is vertically upwards.

The greatest height reached by P P\,P is 24 m above the ground.

a.

Find the exact value of kkk.

[3]
b.

Find the horizontal distance travelled by P P\,P before it returns to the ground.

[3]
Markscheme

3.2.5 Motion under gravity and projectiles (A-level only) Questions

  1. A Level
  2. /Maths
  3. /3.2.5 Motion under gravity and projectiles (A-level only)

91 exam-style questions on AQA A Level Maths 3.2.5 Motion under gravity and projectiles (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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