Homework $\backslash$#$12$: Nodal Analysis

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Assume the material is Aluminum:

$\backslash [$

E$=10\mathrm{.}4\backslash$mathrm$\{$Mpsi$\}$

$\backslash ]$

Show all work $($balance forces at nodes$)$ and solve by hand $($not computer$)$

Hint: matrix should be $\backslash (2\backslash$times $2\backslash )$

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