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Statement of a problem № 10028

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A cable is placed around three parallel pipes. Two of the pipes are fixed and do not rotate; the third pipe is slowly rotated. Knowing that the coefficients of friction are μs = 0.25 and μk = 0.20, determine the largest weight W that can be raised (a) If only pipe A is rotated counterclockwise, (b) If only pipe C is rotated clockwise.




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