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4:Determine the force in all the truss members (do not forget to mention whether they are in T or C). (20 pts) Ib D 3 ft Ib E

D = 60 lb
C = 50 lb
engineering   Mechanical-Engineering   
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Answer #1

♡ Given, 60db Reactions in members T 34 F. с. 5016 T 31 AKO B 8ft By using method of joints. at D EFrro - 60 + EDCOSO = 0 ToHow Eff=0 ED sin36.8 -De=0 . DC - (75)( sin 368) IDC 45 lb T ( Tension) DC = At C.:- =0 E fj CD-CB=0 ... ICBE 4516 Now, E Fxet we get adding of 1 0.8 AE + 0 SEB = 110 0.8 AE 0:18 EB = 60 3 1.GAE 170 force in equation AE = 106-25 lb С. compression puangle is determined by geometry of figure

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