Foy Fe mg 3 0 m 21m Fw 1 40 m 2 8 m ME FM 15 12 cm 24 cm Problem 5 Consider a ladder with a painter climbing up the ladder as shown in the figure above on the left The length of the ladder is 5 0 m the mass of the ladder is m 12 kg and the mass of the painter is M 55 kg The ladder begins to slip at its base when her feet are a distance of 3 5 m up the length of the ladder Since the ladder begins to slip at its base the maximum friction force Ffric Nground is acting on the ladder where Nground is the normal force acting on the ladder from the ground There is no friction between the wall and the ladder What is the static friction coefficient between the ladder and the ground Answer 0 50
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