The principle of floatation says that for a floating objects,the weight of the object equals the upthhrust exerted by a fluid on that object.
ie: When a body floats in a liqiud , it is in equilibrium and is acted upon by two forces only,its weigght and the upthrust.
These two forces must be equal and opposite to satisfy the conditions of floatations,
Weight of object = upthrust
But as we already know from Archimedes principle that U=Vx Dx g N..............................1
So hence, Weight=VDg..........................2
With these two equations you must be able to solve problems on the law of flatation,
I wish you all the best in your exam.If you need any other notes or information in this topic or any other area of physics email me or simply put a comment.
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