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690_Mechanics Homework Mechanics of Materials Solution

690_Mechanics Homework Mechanics of Materials Solution - A...

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Unformatted text preview: _ A J _ 1 L____.i I__J L..__x PROBLEM 6.30 ”IF—”IF Dimensions in mm 6.30 The built-up Wooden beam shown is subjected to a vertical shear of 8 kN. KnoMngthatmenailsarespacedlongitudirmflyeveryGOmmatAand-everyzsnun MP. determine the shearing force inlhe nails (a) nu! (b)atB. (Given. 1, = 1. 504 x 10 mm‘.) SOLUTION I, = n.504ulo‘,m" r I504 vb"m‘ S. «'1' 60 mm: 0.050... = 25' Mr. ‘-' 0.025!“ (on Q.=Q.= A5. = (SoklooWSo) , 750x103 m3 7 7.5-0 “[0" m3 A = 31% = VQ___.__S.__)(3~10‘ §750uo")(ooeo) 150% Mo“ = 23°: N «A (b) Q1= Ad; = (300x5030753: 2625.;o’mfi Q3: 2Q. + Q: ”HER/Oama 4:25 x lo“ un‘ ...
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