Four particles each of mass m are kept at the four corners of a square of edge a. Find the moment of inertia of the system about an axis perpendicular to the plane of the system and passing through the centre of the square.

Four particles each of mass m are kept at the four corners of a square of edge a. Find the moment of inertias of the system about a line perpendicular to the plane of the square and passing through the centre of the square.

Four particles each of mass 'm' are kept at the four corners of a square of edge 'a'. Find the moment of inertia of the system about a line perpendicular to the plane of the square and passing through the center of the square.

Four particles each of mass 'm' are kept at the four corners of a square of edge 'a'. Find the moment of inertia of the system about a line perpendicular to the plane of the square and passing through the center of the square.

Four particles each of mass m are placed at the corners of a square of side length l . The radius of gyration of the system about an axis perpendicular to the plane of square and passing through its centre is

Four particles of masses m, m, 2m and 2m are placed at the four corners of square of side a. Find the centre of mass of the system.