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3.2 Kinematics

3.2 Kinematics

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Question 24

A ball is projected vertically upwards from point O O\,O with speed 12 m s-1. Point A A\,A is 5 m vertically above OOO. The ground is 8 m vertically below OOO. Model the ball as a particle moving freely under gravity and use g=9.8 m s−2g=9.8\text{ m s}^{-2}g=9.8 m s−2.

a.

Determine the two times at which the ball passes AAA.

[3]
b.

Determine the time at which the ball reaches the ground.

[3]
c.

Find the speed with which the ball reaches the ground.

[2]
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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