P = ρ·g·h
F_b = ρ_f·V·g
Floats if ρ_obj < ρ_f
F_net = F_b − W
Archimedes' Principle: The buoyant force on an object equals the weight of fluid it displaces. An object floats when its average density is less than the fluid density.
Pascal's Law: Pressure applied to an enclosed fluid is transmitted equally in all directions.