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3.2 Q: Kinematics

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Question 114

The displacement of a particle P P\,P from the origin at time t t\,t seconds is r=t2(t+k)r = t^2(t + k)r=t2(t+k) metres, where k k\,k is a constant.

P P\,P is instantaneously at rest when t=4t = 4t=4.

a.

Show that k=−6k = -6k=−6.

[3]
b.

Find the acceleration of P P\,P when t=10t = 10t=10.

[3]
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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