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34_Problem CHAPTER 10

34_Problem CHAPTER 10 - PROBLEM 10.32 For the mechanism...

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PROBLEM 10.32 For the mechanism shown, block A can move freely in its guide and rests against a spring of constant 15 lb/in. that is undeformed when 45 . θ For the loading shown, determine the value of corresponding to equilibrium. SOLUTION First note ( ) 10sin in. D y = Then ( ) 10cos in. δθ δ = D y Also ( ) 212cos in . = A x Then ( ) ( ) 0 24 in. cos45 A x = ° and ( ) 24sin in. =− A x With 0: < Virtual Work: ( ) 0: 60 lb 0 DS P A Uy F x δδ = −=
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