Buoyancy: A rock is under water in a shallow lake. As the rock sinks deeper and deeper into water, the buoyant force on it
A) increases.
B) decreases.
C) remains constant.

Question

Quizplus · Accepted Answer

The buoyant force on an object submerged in a fluid depends on the volume of the fluid displaced by the object, not on the depth at which the object is submerged. Since the volume of the rock and the density of water remain constant, the buoyant force remains constant as the rock sinks deeper.

Buoyancy: a Rock Is Under Water in a Shallow Lake