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2 Unit AS 2: Applied Mathematics

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Question 170

In this question use g=9.8g = 9.8g=9.8 m s−2^{-2}−2.

A uniform ladder AB AB\,AB of mass 20 kg and length 5 m rests with the end A A\,A on rough horizontal ground and the end B B\,B against a smooth vertical wall.

The coefficient of friction between the ladder and the ground is 0.4. The ladder makes an angle θ \theta\,θ with the ground and is on the point of slipping.

Figure for question 8

a.

Find the magnitude of the frictional force of the ground on the ladder.

[2]
b.

Find the value of θ\thetaθ, giving your answer to one decimal place.

[4]
Markscheme

2 Unit AS 2: Applied Mathematics Questions

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

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