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2.2 Kinematics

2.2 Kinematics

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Question 10

At 2 p.m. drone P P\,P has position vector (2i+7j)(2\mathbf{i} + 7\mathbf{j})(2i+7j) m and moves with constant velocity (i−2j)(\mathbf{i} - 2\mathbf{j})(i−2j) m s−1\text{s}^{-1}s−1. Another drone Q Q\,Q has position vector (−3i+j)(-3\mathbf{i} + \mathbf{j})(−3i+j) m and moves with constant velocity (5i+2j)(5\mathbf{i} + 2\mathbf{j})(5i+2j) m s−1\text{s}^{-1}s−1.

a.

Find the relative displacement of drone P P\,P from drone Q Q\,Q after t t\,t seconds.

[6]
b.

Find the time when P P\,P is due west of QQQ.

[2]
c.

Find the time, after 2 p.m., when the drones are exactly 85 \sqrt{85}\,85​ m apart.

[6]
Markscheme

2.2 Kinematics Questions

  1. A Level
  2. /Maths
  3. /2.2 Kinematics

85 exam-style questions on CCEA A Level Maths 2.2 Kinematics, covering 2.2.1 Kinematics, 2.2.2 Kinematics, 2.2.3 Kinematics, and 2.2.4 Kinematics. Each one has a worked solution and a mark scheme showing where the marks go.

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