Buoyant Force on Floating Objects · PhysicsBowl 2007 #35
Physics · fluid-mechanics
Problem
Two objects labeled K and L have equal mass but densities 0.95D₀ and D₀, respectively. Each of these objects floats after being thrown into a deep swimming pool. Which is true about the buoyant forces acting on these objects?
(a) The buoyant force is greater on Object K since it has a lower density and displaces more water.
(b) The buoyant force is greater on Object K since it has lower density and lower density objects always float "higher" in the fluid.
(c) The buoyant force is greater on Object L since it is denser than K and therefore "heavier."
(d) The buoyant forces are equal on the objects since they have equal mass.
(e) Without knowing the specific gravity of the objects, nothing can be determined.