The overhang bean is constructed using two $2-$in$.$ by $4-$n$.$ pieces of wood braced as

shown in the figure below. Assume the beam is pin$-$connected at $A_1{B}_1$ and $D.$ Neglect the

axial force developed in the bean along $DA.$ The allowable bending stress is

${}_{\text{a}\text{l}\text{l}\text{o}\text{w}}=585$ ps$.($Figure $1)$

Determine the largest load $P$ that can be applied.

Express your answer to three significant figures and include the appropriate units.

$P=$

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Part B

Determine the associated maximum spacing of nails, $s,$ along the beam section $AC$ if each nail can resist a shear force of $815lb.$

Express your answer to three significant figures and include the appropriate units.

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