Thursday, September 29, 2011

A Level Notes: Law of Floatation

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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