p170-w8.1

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University of British Columbia *

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170

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Mechanical Engineering

Date

Oct 30, 2023

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pdf

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2

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PHYS 170 Worksheet 8.1 Student ID Family Name First Name Email _________ ____________ __________ _________________________ _________ ____________ __________ _________________________ _________ ____________ __________ _________________________ _________ ____________ __________ _________________________ _________ ____________ __________ _________________________ _________ ____________ __________ _________________________ _________ ____________ __________ _________________________ _________ ____________ __________ _________________________ 1. Find the cable tension required to start moving the 7000 lb garbage bin. Point G is the center of gravity. The bin contacts the ground at point A, and the ramp at point B. The coefficients of friction are . μ A = 0.4 and μ B = 0.3
2. Find the minimum force P required to start pulling cable from the 200 lb spool if the static friction at A and B is μ = 0.25. If you have time, for your amusement, re-do the solution for μ = 0.3. What’s going on?
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