Water creates a load on a rectangular gate. The dimensions are $a=2m,b=4m,$ and $c=3m.$ WhatIn constructing dams, the concrete is poured in lifts of approximately $1\mathrm{.}8m(y_1=1\mathrm{.}8(m)).$

The forms for the face of the dam are reused from one lift to the next. The figure shows

one such form, which is bolted to the already cured concrete. For the new pour, what

moment will occur at the base of the form per meter of the length $($normal to the page$)?$

Assume that concrete acts as a liquid when it is first poured and has a specific weight, $=$

$24k\frac{N}{m^3}.$

is the distance in meters from the bottom of the reservoir to the center of pressure?