Newton’s Law

A geo-stationary satellite is a particular type used in television and telephone communications. A number of communication satellites which appear to remain in fixed positions…

A satellite revolving in a circular orbit round the Earth possesses both potential energy and kinetic energy. If h is the height of the satellite…

Gravitational mass is the mass of a body which determines the magnitude of gravitational pull between the body and the Earth This is determined with…

Inertial mass of a body is a measure of the ability of a body to oppose the production of acceleration in it by an external…

Let the mass of the Earth be M and its radius be R. Consider a point A on the surface of the Earth and another…

Consider a body of mass m placed at P at a distance r from the centre of the Earth. Let the mass of the Earth…

Consider a body of mass M at the point C. Let P be a point at a distance r from C. To calculate the gravitational…

Gravitational potential at a point is defined as the amount of work done in moving unit mass from the point to infinity against the gravitational…

Two masses separated by a distance exert gravitational forces on one another. This is called action-at-a-distance. They interact even though they are not in contact.…

Consider a body of mass m on the surface of the Earth as shown in the Figure. Its distance from the centre of the Earth…