A cable passes around three 2-in.-radius pulleys and supports two blocks as shown. Two of the pulleys

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A cable passes around three 2-in.-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 weight A W which can be raised
(a) If pulley C is rotated,
(b) If pulley E is rotated.



C. 10 in WA 5 in- B16 lb

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Vector Mechanics for Engineers Statics and Dynamics

ISBN: 978-0073212227

8th Edition

Authors: Ferdinand Beer, E. Russell Johnston, Jr., Elliot Eisenberg, William Clausen, David Mazurek, Phillip Cornwell

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