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A uniform ladder of mass m = 12.6 kg and length L = 4.08 m is leaned against a frictionless wall at an angle

A uniform ladder of mass m = 12.6 kg and length L = 4.08 m is leaned against a frictionless wall at an angle of 0 = 22.9, as shown in Figure 4. A human, of mass m = 74.1 kg, stands a distance d = 1.26 m up the ladder as shown. What is the minimum coefficient of static friction between the ladder and the ground that will prevent the ladder from slipping? Ladder L Wall

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