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3 Mechanics

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Question 143

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 Mechanics Questions

  1. A Level
  2. /Maths
  3. /3 Mechanics

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