1. The problem statement, all variables and given/known data A flat-bottomed barge, loaded with coal, has a mass of 2.8 x 10 ^(5) kg. The barge is 19.8 m long and 10.5 m wide. It floats in freshwater. What is the depth of the barge below the waterline? 2. Relevant equations Archimedes principle density = mass / volume 3. The attempt at a solution I first found the area to be 207.9 meters ^(2). Buoyant force = density x gravity x volume. I did 2.8 x 10 ^ (5) / 207.9 = 1346.80. I have no idea what to even do now. Anyone?