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3.5 Newton's Laws of Motion

3.5 Newton's Laws of Motion

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Question 18

Three forces act on a particle in equilibrium. Two of the forces are (6i−2j)(6\mathbf{i}-2\mathbf{j})(6i−2j) N and (−3i+7j)(-3\mathbf{i}+7\mathbf{j})(−3i+7j) N.

a.

Find the third force.

[2]
b.

Find the magnitude and direction of the third force, giving the direction as an angle south of west.

[2]
Markscheme

3.5 Newton's Laws of Motion Questions

  1. A Level
  2. /Maths
  3. /3.5 Newton's Laws of Motion

49 exam-style questions on OCR (MEI) A Level Maths 3.5 Newton's Laws of Motion, covering 3.5.1 Meaning of Newton's three laws, 3.5.2 Equation of motion, 3.5.3 Equation of motion for a particle in a straight line, 3.5.4 Model a system of connected particles, 3.5.5 Equations of motion for individual particles, 3.5.6 System with no relative motion as a single particle, and 3.5.7 Equation of motion in a straight line or plane (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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