As a rock sinks deeper and deeper into water of constant density,what happens to the buoyant force on it if it started above the surface of the water?
A)The buoyant force keeps increasing steadily.
B)The buoyant force remains constant.
C)The buoyant force first increases and then remains constant.
D)The buoyant force steadily decreases.

Question

Quizplus · Accepted Answer

The buoyant force on an object increases as it displaces more fluid, up until it is fully submerged. Once fully submerged, the buoyant force remains constant, as it is equal to the weight of the fluid displaced by the object, according to Archimedes' principle.

As a Rock Sinks Deeper and Deeper into Water of Constant