6. An inverted pyramid with base of 2 m by 2m and height of 5 m is filled to depth of 4 m. Setup the integral(s), but do not evaluate, to find the work is required to pump all of the liquid over the top of the container. Assume weight density of the liquid is y N/m'. Use the reference from Fig. 2.1 .. Fig. 1 2 m 2 m 5 m 4 m Fig. 2 2m 5m ( #,0 )