Skip to content

Course home

Question bank·Forces and Friction
Sign up

Forces and Friction

EasyMediumHard
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182
Question 42

A box of mass 12 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 normal reaction of the floor on the box.

A box of mass 12 kg sits on a horizontal floor with a force pulling upwards to the right at an angle above the horizontal.

[2]
b.

Hence find the acceleration of the block.

[4]
c.

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 12 kg sits on a horizontal floor while a 24 N force pushes it downwards to the right at 30° below the horizontal.

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

[2]
Markscheme

Forces and Friction Questions

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

107 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.

More questions