Calculate the depth below the water surface of the centre of pressure of the water pressure acting on the submerged triangular lamina, height 3m, base 2m and located at a depth of 1m below the surface.
not entirely sure
The Attempt at a Solution
I found the centroid location at 2.5m from the surface, c= (2)(3)^3/36.. now i have no clue what to do. any tips?, I now that the center of pressure must be below this point