Question

define center of mass of a body

Answer 1

The point where the sum of moments of all the particles constituting the body is zero, is called the C.o.m

Answer 2

Hey 

Here is your answer.......

Center of mass is defined as the position relative to an object or system of objects.It is average position of the all the parts of the system,weighed according to their mass.

For example rigid objects with uniform density ,the center of mass is located at the center..

Hope this helps you!!!!