A uniform ladder of weight W and length
2a rest in limiting equilibrium with one
end on a rough horizontal ground and the
other end on a rough vertical wall.
The coefficient of friction between the ladder
and the ground and between the ladder and
the wall are respectively μ and λ . If the ladder
makes an angle θ with the ground where tan θ = (5/(12)),
a) show that 5μ + 6λμ − 6 = 0.
b) find the value of λ and μ given that λμ =(1/2).
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