Question

What is buoyant force? What is it's unit?

Answer 1

Liquid exerts a force on objects immersed or floating in it. This force is equal to the weight of the liquid that is displaced by an object. This is also known as Archimedes' principle. The unit for the buoyant force (like other forces) is the Newton (N).


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Answer 2

any body completely or partially submerged in a fluid (gas or liquid) at rest is acted upon by an upward, or buoyant, force the magnitude of which is equal to the weight of the fluid .
it's unit newton