- #1
Michael94
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Homework Statement
Uniform ladder leaning 60 degrees from the ground against smooth wall (ladder: length 10' weight 60#). Vertical thrust by ground ? Horizontal Push by wall ? Coeff. of friction between ladder and ground ?
Homework Equations
Fx = 0 = F + H = 0
Fy = 0 = V + N - 60# = 0
L about ladder center of gravity = 0 = V*sin60*5' + H*cos60*5' - N*sin60*5 + F*cos60*5' = 0
Friction Coefficient = F/N
I have 4 equations and 5 unknowns. What am I missing in order to find the results ?