Question

Consider a 7.2 m ladder with a painter climbing up it. If the mass of the ladder is 15.0 kg, the mass of the painter is 83.2 kg, and the ladder begins to slip at its base when his feet are 39% of the way up the length of the ladder, what is the coefficient of static friction between the ladder and the floor? μ_wall = 0.265. The angle between the floor and ladder is 41°. Please ensure that all unknown answers are given. g=9.81m/s². Find N₁ and N₂ as well as µ

Answer 1

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