SCalcET$98\mathrm{.}3\mathrm{.}012.EP.$

A vertical dam has a semicircular gate $as$ shown $in$ the figure. The total depth $dof$ the figure $is10m,$ the height $hof$ air above the water level $is2m,$ and the width $w9\mathrm{.}8\frac{m}{s^2}$ for the acceleration due $to$ gravity. Assume that the weight density $of$ this water $is1,000k\frac{g}{m^3}.{\displaystyle \underset{0}{\overset{\phantom{}}{}}}(1,000)(9\mathrm{.}8)(x)dx$

Find the hydrostatic force $(inN)$ against the gate. $(Round$ your answer $to$ the nearest whole number.$)$