Method of Sections: Problem example

$6\mathrm{.}47$ The Howe truss helps support a roof. Model the supports at A and $G$ as roller supports.

$($a$)$ Use the method of joints to determine the axial force in member $BI.$

$($b$)$ Use the method of sections to determine the axial force in member BI$.$

$6\mathrm{.}48$ Use the method of sections to determine the axial force in member EJ$.$

$6\mathrm{.}47$ The Howe truss helps support a roof. Moder the suppors at A and $G$ as roller supports.

$($a$)$ Use the method of joints to determine the axial force in member $BI.$

$($b$)$ Use the method of sections to determine the axial force in member $BI.$

$6\mathrm{.}48$ Use the method of sections to determine the axial force in member $EJ.$