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3.2 Kinematics

3.2 Kinematics

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Question 157

In this question use g=9.8g = 9.8g=9.8 m s−2^{-2}−2.

A particle P P\,P is projected with speed U U\,U m s−1^{-1}−1 from a point AAA, which is 20 m above horizontal ground. P P\,P is projected at an angle of 60° 60°\,60° above the horizontal. Air resistance is modelled as negligible.

The greatest height reached by P P\,P is at the point BBB, which is 16 m above AAA.

a.

Find the value of UUU.

[3]
b.

Find the speed of P P\,P when it hits the ground.

[3]
Markscheme

3.2 Kinematics Questions

  1. A Level
  2. /Maths
  3. /3.2 Kinematics

260 exam-style questions on OCR A Level Maths 3.2 Kinematics, covering 3.2.1 Language of kinematics, 3.2.2 Graphs in kinematics, 3.2.3 Displacement-time and velocity-time graphs, 3.2.4 Constant acceleration formulae, 3.2.5 Constant acceleration in two dimensions (A-level only), 3.2.6 Non-uniform acceleration in one dimension (A-level only), 3.2.7 Non-uniform acceleration in two dimensions (A-level only), 3.2.8 Motion under gravity using vectors (A-level only), and 3.2.9 Projectiles (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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