This arm is attached to a wall on the left. The right end is free hanging. Each sectic is $1\mathrm{.}2$ m wide and $3\mathrm{.}6$ m high.

If the force at the end of the arm is $\backslash (\backslash$mathrm$\{$F$\}=130\mathrm{.}0\backslash$mathrm$\{$~N$\}\backslash ),$ what is the force in member $9?$ Us the Method of Sections.

Use a positive number if it is in tension and a negative number if it is in compressic

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