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Archimedes principle:

Archimedes principle states that a body immersed in fluid is buoyed by a force equal to the weight of the displaced fluid.


From this principle we can find that whether an object floats or sinks. If the weight of fluid displaced is less than the weight of the object, it will sink otherwise it will float and displaces the same magnitude of weight of fluid as that of its weight.


The weight of the fluid displaced, W = mg

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