Suppose a spacecraft orbits the moon in a very low, circular orbit, just a few hundred meters above the lunar surface. The moon has a diameter of 3500 km, and the free-fall acceleration at the surface is 1.6 m/s2. | The direction of the net force on the craft is Away from the surface of the moon. In the direction of motion. Toward the center of the moon. Nonexistent, because the net force is zero.\