Question

What is mean by buoyancy and buoyant force?

Answer 1

Definition: Resultant upward force experienced by a body when immersed in a fluid is called buoyant force or upthrust force.

Explanation :

1. An object that is partly, or completely, submerged experiences a greater pressure on its bottom surface than on its top surface.
2. The upward force exerted by the liquid on the body is nothing but buoyant force.
3. Upward depends on following

1. Volume of the body submerged in a fluid,
2. Density of the fluid in which the body is immersed.
3. Acceleration due to gravity at the place
4. Temperature