Consider the beam shown in $($Figure $1).$ Suppose that $P_1=6\mathrm{.}8$kip

and $P_2=3\mathrm{.}4$ kip.

Part A

Determine the absolute maximum shear stress developed in the beam.

Express your answer in pounds per square inch to three significant figures.

$\{\begin{array}{c}\text{:}({}_{\text{m}\text{a}\text{x}}{)}_{\frac{?}{abs}}=\end{array}$

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Figure