A ladder of uniform density,length L and weight W rests on a rough floor (µ_s = 0.45)and against a frictionless wall.The maximum value of the angle between the wall and the ladder to prevent slipping is A)42 $\circ$ . B)37 $\circ$ . C)29 $\circ$ . D)24 $\circ$ . E)19 $\circ$ .

Question

Quizplus · Accepted Answer

The maximum angle of the ladder with the horizontal is given by tan θ = μs, where μs is the coefficient of static friction. Substituting μs = 0.45, we get θ = 24.2°.

A Ladder of Uniform Density,length L and Weight W Rests ∘\circ∘

A Ladder of Uniform Density,length L and Weight W Rests $\circ$