Find the potential energy of 4-particles, each of mass 1 kg placed at the four vertices of a square of side length 1 m.

Find the potential energy of a sytem of four particle each of mass 5 kg placed at the vertices of a square of side 2m.

Find the potential energy of a system of four particles each of mass m placed at the vertices of a square of side I .

Find the potential energy of a system of four particles each of mass m place at the vertices of a square fo side l. Also obtain the potential at the centre of the square.

Find the gravitational potential energy of a system of four particles, each of mass m placed at the verticles of a square of side l . Also obtain the gravitaitonal potential at centre of the square.

Find the gravitational potential energy of a system of four particles, each of mass m placed at the verticles of a square of side l . Also obtain the gravitaitonal potential at centre of the square.

Find the gravitational potential energy of a system of four particles, each of mass m placed at the verticles of a square of side l . Also obtain the gravitaitonal potential at centre of the square.

Find the potential energy of a system of four particles each of mass 2m kept at the vertices of a square of side x. Also find the potential at the centr of the square.

Find the potential energy of a system of four particles each of mass 2m kept at the vertices of a square of side x. Also find the potential at the centr of the square.

Find the potential energy of a system of eight particles of mass M placed at the vertices of a cube of side L. neglect the self energy of the particles.