Question
An artificial satellite of mass 300 kg is revolving in an orbit at a height equal 500km from the surface of the earth. Find the kinetic energy, potential energy and total energy of satellite. (Take g = 9.8 m/s2 at the surface of the earth)
Solution
Mass of the satellite = 300 kg
Height = 500 km, from the surface of the Earth
Here, we have
r = R + h
= 6.4 x 106 + 500 x 103
= 7.0 x 106 m
m = 300 kg;
M = 6 x 1024 kg;
G = 6.67 x 10-11 N m2 kg-2
i) K.E of satellite =
