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Problem $09\mathrm{.}046-$ Largest load supported by two member structure $-$ DEPENDENT MULTI$-$PART PROBLEM $-$ ASSIGN ALL PARTS

The structure consists of two uniform members $AB$ and $BC,$ each weighing $3\mathrm{.}8$ kN $.$ The members are pinned to one another at $B,$ and the structure is supported by surfaces at A and $C$ having coefficients of static friction of $1\mathrm{.}2$ and $0\mathrm{.}5.$ respectively.

NOTE: This is a multi$-$part question. Once an answer is submitted, you will be unable to return to this part.

Problem $09\mathrm{.}046.$a $-$ Largest load supported by two member structure

Determine the largest positive value $P$ the structure can support. $($Round the final answer to one decimal place.$)$

The largest positive value $P$ is $$ kN $.$