give the relation between buoyant force and the weight of the body for a floating body
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the Archimedes principle states that the buoyant force is the weight of the fluid displaced. So, for a floating object on a liquid, the weight of the displaced liquid is the weight of the object. Thus, only in the special case of floating does the buoyant force acting on an object equal the object's weight.
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Weight of a body = mg
where, m is the mass of the body and g is the acceleration due to gravity.
In case of a floating body, the net vertical force should be zero.
And there are only 2 forces applied on the object vertically in opposite directions, i.e., the weight of the body and the buoyant force.
Therefore, the buoyant force must be equal to the weight of the body = mg
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