Question

Explain Buoyancy, Buoyancy Force and Centre of Buoyancy

Answer 1

A buoyant force is a force which pushes upward on an object and is caused by displaced fluid.
This force always exists regardless of how much the fluid is displaced.
The more fluid that's displaced, the greater thebuoyant force.
This leaves only the forces acting in the upward direction.

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Answer 2

1. the property of liquid to exert an upward force on a body immersed in it is called buoyancy.


2.
when a body is partially or wholly immersed in a liquid an upward force actc on it .This upward force is known as upthrust or buoyant force .



3.

the centre of buoyancy is the point on which the buoyant force on a body due to a liquid act