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Problem 2: Find the displacement in the $x$-direction, $y$-direction, and the total displacement at point $C$ for the truss system. All trusses have elastic modulus $E=170.GPa$ and length $L=1m$. Truss $BC$ has cross-sectional area of $4cm_{2}$ while truss $AC$ has a cross-sectional area of $16cm_{2}$. There is no truss spanning $A−B$. Force $P=100kN$.