(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

(8 marks)

A uniform ladder (m = 35kg) leans against a smooth frictionless wall. The foot of the ladder is 3 m from the wall and an 85kg firefighter stands 3m up the ladder as shown. Find the coefficient of friction of the floor.

http://i49.tinypic.com/ftdo9g.jpg

2. Relevant equations

(Angular Newton's Second Law and Linear Newton's First Law)

Στ=0 and ΣFx=ΣFy=0

τ = F⊥r

3. The attempt at a solution

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

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# Homework Help: Impossible Question

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