Discuss about net force acting on one mass by number of bodies: superposition principle.
When no. of bodies are present in a system, the net gravitational force acting on a body is the resultant of the gravitational pull of all the bodies. And there directions are along the line joining the center of mass of any two bodies. Most of the time, students forget to consider the direction of gravitational pull.
Two stationary particles of masses and are at distance d apart. A third particle, lying on the line joining the particles, experiences no resultant gravitational force. The distance of this particle from is
Four similar particles of mass m are orbiting in a circle of radius r in the same angular direction because of their mutual gravitational attractive force. Velocity of a particle is given by.