Class Activity $12$

$H=10\mathrm{.}11$ kips

$V=37\mathrm{.}8$ kips

$x=10\mathrm{.}48ft$

For a $1-$ft$-$wide dam section determine $(a)$ the resultant of the reaction forces exerted by the ground on the base $AB$ of the dam, $($b$)$ the point of application of the resultants $($c$)$ the resultant of the pressure forces exerted by the water on the face $BC$ of the dam. Discuss possible failure modes

$r_{\text{w}\text{a}\text{t}\text{e}\text{r}}=62\mathrm{.}4l\frac{b}{f}{t}^3$

${}_{\text{c}\text{o}\text{n}\text{c}\text{r}\text{e}\text{t}\text{e}}=150l\frac{b}{f}{t}^{{?}^{{?}^{?}}3}$