The man has a mass of 40 kg. He plans to scale the vertical crevice using the
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The man has a mass of 40 kg. He plans to scale the vertical crevice using the method shown. If the coefficient of static friction between his shoes and the rock is μs = 0.4 and between his backside and the rock, μb = 0.3, determine the smallest horizontal force his body must exert on the rocks in order to do this.
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