Question
Sat July 07, 2012 By:
 

what is the need of finding centre of gravity of an object?

Expert Reply
Sat July 07, 2012
If we are dealing with  a compound object like a car consisting of a number of separate particles having different mass and non uniform distribution,we need to know where the force of mass acts on the body as a whole so that we can express the whole body by a single particle
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