Problem #$6(18$ pts$)$: Draw an FBD and determine the magnitude of the internal forces and moments acting on the ABCD

cross$-$section. The $3-$m distance is given to the centerline of the post. Fill the table with your answers. Work must be shown to

receive credit. Note: forces$/$moments may be zero. Report your answers with $3-$ or $4-$ significant figures.

Hint: Always find internal forces and moments at the centroid of the cross$-$section.

Note: Ine b kPa pressure is acting

on the entire $1\mathrm{.}5$ m x $3$ m face.