Gravitation|Escape speed#!#Earth satellite#!# Energy of an orbiting satellite

Choose the correct alternative : (a) If the zero of the potential energy is at infinity, the total energy of an orbiting satellite is negative of its kinetic/potential energy. (b) The energy required to rocket an orbiting satellite out of Earth's gravitational influence is more/less than the energy required to project a sationary object at the same height (as the satellite) out of Earth's influence.

Orbital speed of a satellite

An orbiting satellite will escape if

Define orbital speed of a satellite.

Gravitational Potential Energy | Escape Velocity | Motion of Satellite | Energy of Satellite | Circular and Elliptical Orbits

If a satellite is moving around thee earth in an orbit of 5 R radius , here R = radius of the earth . The minimum kinetic energy required to be provided to the satellite such that it escapes the gravitational field of the earth is ( M and m are masses of earth and satellite respectively )