# Y17 Statics_Trusses - Problems.pdf - 1. Determine the...

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1.Determine the forces in members CG and GH of the symmetrically loadedtruss. Indicate whether the members work in tension {T} or compression {C}.(4/34)
FyFBD of whole systemAyAx=00AMLFFLFLLLyyy5.1,1015,0)10()10(2)7()3(+LALLAFAFyyyxx5.1035.10,00
FCDFCGFHGFyAyAx=0Cut, right side0CMCG and GH0)7(5.1)7(2)4()3(LLLFGH TLFGH+0yF005.12)53(CGCGFLLLFCutCG and GH = ?
2.Determine the force inmember DG of the loadedtruss.
 TLFFFFDGDGGHy004.14sin0FDCFBD of whole system0BM+CutAyBx=0ByLAALALLLLLyyy3,2060,0)20()20()16()12()8()4(Cut, left side0DM+LFLLLFGHGH12.40)8(3)8()4()3(04.14cosFGHFFGFDGJoint GFDHFGHyxq04.14,41tanqqDG = ?
3.Determine the forces in members BC and FG.(4/41)
BC and FGCutFBCFCJFFJFFG TNFFMBCBCF6000)2(1200)4(0Cut, upper side+ CNFFMBCFGC6000)2(1200)4(0+
4.The hinged frames ACE and DFB are connected by two hinged bars, AB andCD which cross without being connected. Compute the force in AB. (4/47)

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