1. The problem statement, all variables and given/known data A square pool with 100-m-long sides is created in a concrete parking lot. The walls are concrete 90 cm thick and have a density of 2.5 g/cm3. The coefficient of static friction between the walls and the parking lot is 0.49. What is the maximum possible depth of the pool? (The density of water is 1000 kg/m3.) 2. Relevant equations P = F/A, rho=m/v 3. The attempt at a solution I've been at this one for the past two days. I cannot find a way to approach this as I think I have an idea. The density of the wall is given, therefore I can determine how much pressure the wall can take with a variable h(max depth). Wit that I can take that as my net force to determine the height with a given amount of water in the pool. A couple attempts: I converted 2.5 g/cm^3 to 2500 kg/m^3 I used integration to find the total amount of force the wall can handle Ftotal = ∫ ρgh (100 dh), limits of integration 0 to y = 490000y2 I'm just completely stumped here.