quiz_03 - trusses - Quiz #3 For the truss below, identify...

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1 Quiz # 3 For the truss below, identify all 8 zero-force members of the truss shown in a proper sequence. Determine the member forces of #9, #10, and #11, also identify the if they are tension or compression. #10 4 @ 2.5 m = 10 m #11 #9 10 kN 2 m 6 m
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2 #10 4 @ 2.5 m = 10 m #11 #9 2 m 6 m A B D C EF 10 kN θ θ o 57 . 26 ) 5 5 . 2 ( tan 1 = = θ 2 3 4 5 6 8 1 7 Joint E : Σ f y = F 10 = 0 Σ f x = F EF = 0 Joint F : 10 kN F 26.57 o F 9 F 11 Σ F x = 0: F 9 cos26.57 o - 10 = 0 F 9 = 11.10 kN (C) + Σ F y = 0: F 9 sin26.57 o - F 11 = 0 F 11 = 5 kN (T)
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quiz_03 - trusses - Quiz #3 For the truss below, identify...

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