A board of weight W1 is placed across the channel and a boy of weight W2 attempts
Question:
A board of weight W1 is placed across the channel and a boy of weight W2 attempts to walk across. If the coefficient of static friction at A and B μs, determine if he can make the crossing; and if not, how far will he get from A before the board slips?
Given:
W1 = 50 lb
W2 = 100 lb
μs = 0.4
a = 10 ft
b = 4
c = 3
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