What is principle of floatation? Write advantages of this principle.
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The principle of floatation are:-
The principle of floatation are:-i) The weight W of body acting vertically downwards, through the centre of gravity G of the body. This force has a tendency to sink the body.
ii) The upthrust of the liquid acting vertically upwards, through the centre of buoyancy B i.e., the centre of gravity of the displaced liquid. The upthrust (or buoyant force) is equal in magnitude to the weight of the liquid displaced. This force has a tendency to make the body float.
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