Three identical spheres each of radius `3cm` are placed on a horizontal surface touching one another. The distance of centre of mass of system from any centre of the sphere is

Three identical spheres each of radius 'R' are placed on a horizontal surface touching one another. If one of the spheres is removed, the shift in the centre of mass of the system is.

Four identical spheres each of radius 10 cm and mass 1 kg are placed on a horizontal surface touching one another so that their centres are located at the corners of square of side 20 cm. What is the distance of their centre of mass from centre of either sphere ?

Three identical spheres each of radius R are placed thouching each other on a horizontal table as shown in figure. The co-ordinates of centre of mass are : .

Three identical balls each of radius 10 cm and mass 1 kg each are placed touching one another on a horizontal surface. Where is their centre of mass located?

Three identical metal balls each of radius r are placed touching each other on a horizontal surface such that an equilateral triangle is formed, when the center of three balls are joined. The center of mass of system is located at the

Three identical spheres each of radius R are placed touching side by side along X axis so that the centre of the first sphere is at the origin. Now the sphere at the extreme end is removed. The shift in the centre of mass is (A) R (B) 2R (C) R 2 (D) 3R

Three identical spheres each of mass m and radius R are placed touching each other so that their centres A,B and C lie on a straight line. The position of their centre of mass from centre of A is

Three identical spheres each of mass M and radius R are arranged in a row touching each other and their centres collinear.The moment of inertia of the system about an axis passing through the centre of the middle sphere and perpendicular to the line joining their centres is "