Question: Consider the truss shown in ( Figure 1 ) . Assume the members are pin connected at their end points. Take A = 3 in

Consider the truss shown in (Figure 1). Assume the members are pin connected at their end points. Take A=3 in ?2 and E=29(103)ksi for each member. Suppose that F=4.5k
Figure
1 of 1
Choose the correct equation of Castigliano's theorem for trusses.
=??NAEnL
=??N(delNdelP)LAE
=??nNLAE
=??N(delNdelP)AEL
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Correct
Part B
Determine the vertical displacement of joint A measured downward. Use Castigliano's theorem.
Express your answer in inches to three significant figures. Enter a positive value if the displacement is downward and a negative value if the displacement is upward.
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Consider the truss shown in ( Figure 1 ) . Assume

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