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Forces and Friction

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Question 49

A box of mass 10 kg, is pulled along a rough horizontal floor by a force of 24 N at an angle of 30∘ 30^\circ\,30∘ to the horizontal. The box is modelled as a particle and the coefficient of friction between the box and the floor is 0.1

a.

Find the acceleration of the block.

A box of mass 10 kg sits on a horizontal floor and is pulled by a 24 N force at 30° above the horizontal.

[6]
b.

The box is now being pushed along the same floor by a force at an angle of 30∘ 30^\circ\,30∘ to the horizontal.

A box of mass 10 kg sits on a horizontal floor, with a 24 N force pushing towards it at 30° below the horizontal.

Explain why the acceleration of the box will now be less than the acceleration in part (a).

[2]
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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