AQA M1 2008 June — Question 2

Exam BoardAQA
ModuleM1 (Mechanics 1)
Year2008
SessionJune
TopicVectors Introduction & 2D

2 The diagram shows three forces and the perpendicular unit vectors \(\mathbf { i }\) and \(\mathbf { j }\), which all lie in the same plane.
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  1. Express the resultant of the three forces in terms of \(\mathbf { i }\) and \(\mathbf { j }\).
  2. Find the magnitude of the resultant force.
  3. Draw a diagram to show the direction of the resultant force, and find the angle that it makes with the unit vector \(\mathbf { i }\).