1. The problem statement, all variables and given/known data A certain man has a mass of 85.0 kg and a density of 995 kg/m3 (exclusive of the air in his lungs). (a) Calculate his volume. .0854 m3 (b) Find the buoyant force air exerts on him. N (c) What is the ratio of the buoyant force to his weight? (buoyant force / weight) 2. Relevant equations Fb=density (of substance) x Volume (of object) x g density of air=1.2 kg/m3 3. The attempt at a solution Fb=(1.2 kg/m3) x (9.8) (.0854) =1.004N and then for part c 1.004/ (9.8 x 85=833)=.00121 For some reason this is incorrect. Does anyone see why?