The Pratt bridge truss shown in $($Figure $1)$ supports five forces $\backslash ($ F$=260\backslash$mathrm$\{$kN$\}\backslash ).$ The dimension $\backslash ($ L$=8\backslash$mathrm$\{$~m$\}\backslash ).$

Part A

Use the method of sections to determine the axial force in member $\backslash ($ J K $\backslash ).$

Express your answer to three significant figures and include the appropriate units. Enter negative value in the case of compression and positive value in the case of tension.

$\backslash [$

T$\_\{$J K$\}=\backslash$square

$\backslash ]$

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