Given: A Large tank has a plastic window on one wall that is designed to withstand a force of 90,000N. The square window is 2m on a side, and its lower edge is 1m from the bottom of the tank. Question: a) if the tank is filled to a depth of 4 m, will the window withstand the resulting force? b) What is the max depth to which the tank can be filled without the window failing? - I am very confused as to what to do for a) and b). After setting up a sketch I got the integral from 1to4 (9.8m/sec^2)(1000kg/m^3)(4m^2)(4-y). I am not very confident about the Depth which I put at 4-y.