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 fluid displaced by the object, not on the depth of the object. Since the rock's volume doesn't change as it sinks, the buoyant force remains constant.

A Rock Is Under Water in a Shallow Lake