A Porthole on a Vertical Side of a Submarine (Submerged $2 \text { square }$

Multiple Choice

A porthole on a vertical side of a submarine (submerged in seawater) is $2 \text { square }$ $\text { feet }$ . Find the fluid force on the porthole, assuming that the center of the square is feet below the surface.

A) $6,944 \mathrm { lb }$
B) $3,472 \mathrm { lb }$
C) $5,376 \mathrm { lb }$
D) $5,208 \mathrm { lb }$
E) $3,584 \mathrm { lb }$