Question

A storage tank is 4.5 metre wide. It contains a liquid with density 750 kg/m^ 3 to a depth of 7 metre. Calculate the hydrostatic thrust on the side of the tank, and its position from the surface of the liquid.

Answer 1

Area=4.5*7=31.5m²

Hydrostatic thrust, $F_c=\rho gh_cA$

$F_c=750*9.81*\frac{7}{2}*31.5$

$=811164.375$

$=811.16kN$

Location of force ,$y_p=\frac{2h}{3}$

$=\frac{2*7}{3}$

=4.667m