$(26$ points$)$ The $$1250$ simply supported beam is made of $6061-$T$6$ aluminum and is loaded as shown. What is the deflection of Point D $($in inches$)$ and slope at A and $B($in rad$)$ when $a=5ft?$

For $4$ points extra credit on Exam $1,$ draw the shear and moment diagrams?

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I $=303$ in$^4$

E $=10\mathrm{.}1$x$10^3$ ksi