Problem $1.(10$ points$)$ The storage tank contains gasoline, crude oil, and water at the depths shown in the

figure. The tank has a side width of $1\mathrm{.}2$ m $,$ shown in the figure. The density of gasoline is $700k\frac{g}{m^3},$ the density

of the crude oil $($red fluid$)$ is $900k\frac{g}{m^3},$ the density of the water is $1000k\frac{g}{m^3}.$

a$)$ Determine the total resultant force on the bottom of the tank caused by the three liquids.

b$)$ Determine the total resultant

force on side ABCD