Question
An artificial satellite of mass 200 kg revolves around the earth in an orbit of average radius 6670 km. Calculate its orbital kinetic energy, the gravitational potential energy and the total energy in the orbital.
(Mass of earth = 6.0 × 10^{24} kg, G = 6.67 × 10^{–11} Nm^{2} kg^{ –2}).

None of these



easy
Solution
The kinetic energy of a satellite (mass m) revolving in a orbit of radius raround the earth (mass M_{e}) is
The gravitational potential energy is
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