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 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.

Three particles, each of mass 200 g are kept at the corners of an equilateral triangle of side 10 cm. Find the moment of inertia of the system about an axis a. joining two of the particles and passing through lone of the particle and perpendicular to the plane of the particles.

Four point size bodies each of mass M are fixed at four corners of a light square frame of side length L . The moment of inertia of the four bodies about an axis perpendicular to the plane of frame and passing through its centre is

Four particles each of mass m are kept at the four vertices of a square of side 'a' . Find graitational potential energy of this system.