A cable passes around three 30-mm-radius pulleys and supports two blocks as shown. Two of the pulleys
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A cable passes around three 30-mm-radius pulleys and supports two blocks as shown. Two of the pulleys are locked to prevent rotation, while the third pulley is rotated slowly at a constant speed. Knowing that the coefficients of friction between the cable and the pulleys are μs = 0.20 and μk = 0.15, determine the largest mass mA which can be raised
(a) If pulley C is rotated,
(b) If pulley E is rotated.
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Fe C 2r WA NA MAG 0 T zr I E fam am MB 8kg Note Mass A moves up sin Bc BD 17 21 27 30 ...View the full answer
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