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Problem 4: The assembly consists of of two rods, rod $A B$ and rod $C D$ and a rigid bar $A C$. If a force of 5 kips is applied at $E$, determine the displacement of point $C$. $[E=17000 \mathrm{ksi}]$. Let $\mathrm{A}_{\mathrm{AB}}=1.7000000000000002 \mathrm{in}^{2}, \mathrm{~A}_{\mathrm{CD}}=$ $1.1 \mathrm{in}^{2}, \mathrm{~L}_{\mathrm{A}}=6 \mathrm{ft}, \mathrm{L}_{\mathrm{C}}=4 \mathrm{ft}, \mathrm{a}=1 \mathrm{ft}, \mathrm{b}=2 \mathrm{ft}$ Determine the deformation in bar $\mathrm{CD}$. Determine the deformation in bar $A B$. Determine the angle of rotation in rigid bar AC.

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