The coefficients of friction between the block and the rail are s = 0.25 and

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The coefficients of friction between the block and the rail are μs = 0.25 and μk = 0.20. Find the magnitude and direction of the smallest force P required 


(a) To start the block moving up the rail, 


(b) To keep the block from moving down.image

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Related Book For  answer-question

Vector Mechanics For Engineers Statics And Dynamics

ISBN: 9781259977206

12th Edition

Authors: Phillip J Cornwell, E Russell Jr Johnston, David Mazurek, E Russell Johnston Jr, Ferdinand P Beer, Brian

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