A satellite is held in orbit by a 3000-N gravitational force. Each time the satellite completes an orbit of circumference 80,000 km, the work done on it by gravity is: A) 2.4 *10⁸ J B) 2.4 *10¹¹ J C) 9.6 *10¹¹ J D) 0

Question

Quizplus · Accepted Answer

The work done by gravity on a satellite in a stable orbit is zero because the gravitational force is perpendicular to the direction of motion at every point in the orbit.

A Satellite Is Held in Orbit by a 3000-N Gravitational