The force of gravity does work on a satellite when it is in
A)circular orbit.
B)elliptical orbit.
C)both
D)neither

Question

Quizplus · Accepted Answer

In an elliptical orbit, the satellite's speed and distance from the Earth change, causing the gravitational force to do work as it changes the satellite's kinetic energy. In a circular orbit, the gravitational force is perpendicular to the direction of motion, so no work is done.

The Force of Gravity Does Work on a Satellite When