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ch5p11 - 5.73 A folding platform is used to hold parts as...

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Unformatted text preview: 5.73 A folding platform is used to hold parts as well as conserve floor space when not in use. The platform is supported by a. hinge at C which is assumed to support negligible moments, a. leg, at B modeled as a frictionless support and ammablePinatAmodeledasathrustlessbearingagainwithnegligible moments. Ifthe platfimn is loaded as illustrated compute the reaction forces at A, B and C. Ignore the thidrness of the platform. FIGURE P5.73 Soiution: The free body diagram is given in figure 55.73. The equations of equilibrium become: (continued) 451 ...
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