Aswimming pool has the shape of a box with a base that measures 2727 m by 1212 m and a uniform depth of 2.72.7 m. how much work is required to pump the water out of the pool when it is full? use 1000 kg divided by m cubed1000 kg/m3 for the density of water and 9.8 m divided by s squared9.8 m/s2 for the acceleration due to gravity. draw a y-axis in the vertical direction (parallel to gravity) and choose one corner of the bottom of the pool as the origin. for 0 less than or equals y less than or equals 2.70≤y≤2.7, find the cross-sectional area a(y).