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Forces and Friction

Forces and Friction

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Question 10

A box of mass 11 kg, is pulled along a rough horizontal floor by a force of 24 N at an angle of 20∘ 20^\circ\,20∘ 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 11 kg sits on a horizontal floor with a 24 N force directed upwards to the right at 20° to the horizontal.

[6]
b.

The box is now being pushed along the same floor by a force at an angle of 20∘ 20^\circ\,20∘ to the horizontal.

Diagram for Question 8(b): A box of mass 11 kg sits on a horizontal floor. A force of 24 N is applied to the box at an angle of 20 degrees below the horizontal, pushing it towards the box.

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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