What is the upward force exerted by a fluid on a submerged object?

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Multiple Choice

What is the upward force exerted by a fluid on a submerged object?

Explanation:
Upward push from a fluid on a submerged object is the buoyant force. In a fluid, pressure grows with depth, so the pressure on the bottom of the object is greater than on the top. This difference creates a net upward force when the pressures are integrated over the object's surface. The buoyant force has a magnitude equal to the weight of the fluid that the object displaces (Archimedes’ principle). It’s different from gravity, which is the object’s own weight; from inertia, which is an object's resistance to changes in motion; and from the normal force, which is the contact force from a solid surface.

Upward push from a fluid on a submerged object is the buoyant force. In a fluid, pressure grows with depth, so the pressure on the bottom of the object is greater than on the top. This difference creates a net upward force when the pressures are integrated over the object's surface. The buoyant force has a magnitude equal to the weight of the fluid that the object displaces (Archimedes’ principle). It’s different from gravity, which is the object’s own weight; from inertia, which is an object's resistance to changes in motion; and from the normal force, which is the contact force from a solid surface.

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