If the 75-lb girl is at position d = 4 ft, determine the minimum coefficient of static
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If the 75-lb girl is at position d = 4 ft, determine the minimum coefficient of static friction ?s at contact points A and B so that the plank does not slip. Neglect the weight of the plank
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60% 45° 12 ft
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FreeBody Diagram Here we will assume that the plank is on ...View the full answer
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