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Forces and Friction

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Question 10

A brick of weight 10 N lies on a rough plane inclined at an angle of 30∘ 30^\circ\,30∘ to the horizontal. A horizontal force of 12 newtons acts on the brick and the brick is in equilibrium on the point of slipping up the plane.

Diagram for question 7: A brick on an inclined plane at 30 degrees with a 12 N horizontal force.

a.

Find the coefficient of friction between the brick and the plane

[7]
b.

The 12 N force is removed. Determine whether or not the brick moves

[4]
Markscheme

Forces and Friction Questions

  1. A Level
  2. /Maths
  3. /Forces and Friction

108 exam-style questions on Edexcel A Level Maths Forces and Friction, covering 5.1 Resolving Forces, 5.2 Inclined Planes, and 5.3 Friction. Each one has a worked solution and a mark scheme showing where the marks go.

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