A Trough Whose Cross-Section Is a Right Isosceles Triangle Whose $\frac { 8,000 } { 3 }$

Multiple Choice

A trough whose cross-section is a right isosceles triangle whose base is 16 feet long and altitude is 4 feet long is filled with water of density 62.5 pounds per cubic foot. The force, in pounds, due to hydrostatic pressure on one end of the trough is

A) $\frac { 8,000 } { 3 }$
B) $\frac { 2,750 } { 3 }$
C) $\frac { 2,550 } { 3 }$
D) $\frac { 2,450 } { 3 }$
E) $\frac { 2250 } { 3 }$