Consider the frame shown in $($Figure $1).EI$ is constant. Suppose that $F=68kN,$ and $EI$ is in $kN*m^2.$

Figure

$1$ of $1$

$20$

$1*={\displaystyle \underset{0}{\overset{\phantom{}}{}}}M(\frac{\text{d}\text{e}\text{l}\text{P}}{\text{d}\text{e}\text{l}\text{P}})\frac{\frac{?}{\text{b}\text{a}\text{r}}(EI)}{?}$

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Correct

Here we learn how to determine the correct equation for the method of virtual work for the displacement in frames.

Part B

Determine the vertical displacement of point $C$ measured downward. Use the method of virtual work.

Express your answer to three significant figures. Enter positive value if the displacement is downward and negative value if the displacement is upward.

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