2.6.B—Describe situations in which the gravitational force can be considered constant

Describe situations in which the gravitational force can be considered constant.

• If the gravitational force between two systems’ centers of mass has a negligible change as the relative position of the two systems changes, the gravitational force can be considered constant at all points between the initial and final positions of the systems.
• Near the surface of Earth, the strength of the gravitational field is g10 N/ kg