Three identical spheres each of radius R are placed touching each other on a horizontal table. The centre of mass of the system is located

Options

A. at one of the centres of the spheres
B. at the mid point joining the centres of any two spheres.
C. at the point of intersection of the medians of the triangle formed by the centres of the three spheres.
D. at the mid point of a median of the triangle formed by the centres of the three spheres.

Answer

C