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3.2 Kinematics

3.2 Kinematics

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Question 161

For motion close to the Earth's surface, g g\,g is often taken to be the constant 9.8 m s-2.

a.

Explain why this is a reasonable model for a ball thrown a few metres into the air.

[1]
b.

Explain why the same assumption may be less appropriate for an object travelling thousands of kilometres away from the Earth.

[1]
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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