When the density of the body is less than that of the liquid, a body in the liquid floats.
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What is centre of buoyancy?
When a body is placed in a liquid, it displaces some volume of the liquid. Centre of the buoyancy is the centre of gravity of the liquid displaced by the body.
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State laws of floatation.
The laws of floatation are:
(i) The weight of body is equal to the weight of liquid displaced.
(ii) Centre of gravity of body and that of liquid displaced are in same vertical line.
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Where should be the centre of buoyancy of a floating object so that object is in stable equilibrium?
For an object to be in stable equilibroum, the centre of buoyancy should be vertically above the centre of gravity of body. If the body tilts in liquid the restoring torque brings the body to original state in this case.
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