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.

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

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 ?

Four identical particles each of mass m are arranged at the corners of a square of side length L . If one of the masses is doubled, the shift in the centre of mass of the system. w.r.t. diagonally opposite mass

Three particles each of mass 2kg are at the corners of an equilateral triangle of side sqrt 3 m . If one of the particles is removed, the shift in the centre of mass is

Three particles each of mass m are arranged at the corners of an equililateral triangle of side L . If one of masses is doubled. The shift in the centre of mass of the system

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 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 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

A spherical cavity is made in a lead sphere of radius R such that its surface touches the outsides surface of lead sphere and passes through the centre. The shift in the centre of mass of the lead sphere as a result of this following, is