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CBSE Class 11-science Answered

how to calculate center of mass of symmetrical bodies like sphere,rectangle which you asked in video?
Asked by | 30 Nov, 2012, 09:00: PM
answered-by-expert Expert Answer
symmetrical bodies having homogenous distribution of mass over the volume:
 
we take a elemental volume at a particular distance
then we integrate it over the whole object to calculate the mass
center of mass is defined as:
R = ?(M.r)/?r
thus here it will be R = ?M.r dr/?dr               (here M is a function of r)
Answered by | 10 Dec, 2012, 09:19: PM

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