Answer:
Work Done by the earth's gravitational force on the satellite as it travels from apogee to perigee is
W = F*D*Cos90° = 0
Explanation:
Although there is a change in the kinetic energy of the satellite at the apogee and perigee, the work done by the earth's gravitational force on the satellite is Zero.
W = F.D, F is the gravitational force, D is the displacement. Both F and D are vectors and perpendicular to each other. That is, the angle between F and D is 90°.
