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3.2 Q: Kinematics

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Question 20

A hockey puck Q Q\,Q slides across smooth ice with constant acceleration. At time t=0t = 0t=0, Q Q\,Q is moving in the direction (−8i+6j)(-8\mathbf{i} + 6\mathbf{j})(−8i+6j) with speed 20 ms-1. After 8 seconds, its velocity is (4i+18j) ms−1(4\mathbf{i} + 18\mathbf{j}) \text{ ms}^{-1}(4i+18j) ms−1.

Find the acceleration of QQQ.

[5]
Markscheme

3.2 Q: Kinematics Questions

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

265 exam-style questions on AQA A Level Maths 3.2 Q: Kinematics, covering 3.2.1 Language of kinematics, 3.2.2 Graphs in kinematics, 3.2.3 Constant acceleration formulae, 3.2.4 Calculus in kinematics (A-level only), and 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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