Question

How does buoyant force affect a submerged object?

Answer 1

The buoyant force is an upward force on an object submerged in a fluid. It is the resultant of the pressure force on the surface of the object.

The buoyant force may be larger than the weight of the object causing it to accelerate upwards.

The buoyant force may be equal than the weight of the object causing it to remain stationary or continue at constant velocity up or down.

Or the buoyant force may be smaller than the weight of the object causing it to accelerate downwards.

Answer 2

The buoyant force is always present whether the object floats, sinks, or is suspended in a fluid. The buoyant force is the net upward force on any object in any fluid. Pressure due to the weight of a fluid increases with depth since .