Question
Fri November 30, 2012 By:

how to calculate center of mass of symmetrical bodies like sphere,rectangle which you asked in video?

Expert Reply
Mon December 10, 2012
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)
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