Four identical masses m each are kept at points A, B, C & D shown in figure. Gravitational force on mass at point D (body centre) is -

Four indentical masses m are kept at the corners of a square of side a. Find the gravitational force exerted on one of the masses by the other masses.

Three point masses 'm' each are kept at three verties of a square pf side 'a' as shown in figure. Find gravitation potential and field strength at point O. .

Three point masses 'm' each are kept at three verties of a square pf side 'a' as shown in figure. Find gravitation potential and field strength at point O. .

Two point masses m and 2m are kept at points A and B as shown. E represents magnitude of gravitational field strength and V the gravitational potential. As we move from A to B

Two point masses m and 2m are kept at points A and B as shown. E represents magnitude of gravitational field strength and V the gravitational potential. As we move from A to B

Four identical point masses m each are kept at the vertices A, B, and C of a cube having side length ‘a’ (see figure). Another identical mass is placed at the center point D of the cube. (a) Where will you place a fifth identical mass so that the net gravitational force acting on mass at D becomes zero? (b) Calculate the net gravitational force acting on the mass at D.

A mass m is placed in the cavity inside hollow sphere of mass M as shown in the figure. The gravitational force on m is

A point mass m and a uniforms thin rod (mass M and length h) are shown in figure. Find the gravitational force of attraction between them