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2 Unit AS 2: Applied Mathematics

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Question 239

A box of mass 12 kg is pulled along a rough horizontal floor by a force of 20 N acting at 25∘ 25^\circ\,25∘ above the horizontal. The coefficient of friction is 0.1. Take g=9.8g=9.8g=9.8 m s−2^{-2}−2.

a.

Find the acceleration of the box.

[6]
b.

The force is instead applied at 25∘ 25^\circ\,25∘ below the horizontal. Explain why the acceleration is then smaller.

[2]
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2 Unit AS 2: Applied Mathematics Questions

  1. A Level
  2. /Maths
  3. /2 Unit AS 2: Applied Mathematics

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