A certain object floats in fluids of density Which of the following statements is true?
A) the buoyant force of fluid 1 is greater than the buoyant forces of the other two fluids
B) the buoyant force of fluid 3 is greater than the buoyant forces of the other two fluids
C) the three fluids exert the same buoyant force
D) the object displace the same volume of all three fluids
E) none of these are true

Question

A certain object floats in fluids of density  Which of the following statements is true?
A) the buoyant force of fluid 1 is greater than the buoyant forces of the other two fluids 
B) the buoyant force of fluid 3 is greater than the buoyant forces of the other two fluids 
C) the three fluids exert the same buoyant force 
D) the object displace the same volume of all three fluids 
E) none of these are true

Quizplus · Accepted Answer

The buoyant force depends only on the density of the fluid and the volume of the displaced fluid. Since the density of the object is constant, the buoyant force will be the same in all three fluids if the volume of displaced fluid is the same. Therefore, the three fluids exert the same buoyant force.

A Certain Object Floats in Fluids of Density Which