> Would the absence of atmospheric friction result in a different outcome? Yes. > Also, I've heard you could fire a bullet on the Moon and it would be able to

> Would the absence of atmospheric friction result in a different outcome? Yes. > Also, I've heard you could fire a bullet on the Moon and it would be able to go into as low an orbit as a few 100 meters without ever hitting the ground. What's the minimal velocity for that to be plausible? Apparently: 1679 m/s per https://www.quora.com/How-fast-must-an-object-be-moving-to-orbit-the-moon-at-elevation-of-say-1-2-miles-above-surface https://www.quora.com/How-fast-must-an-object-be-moving-to-o... . The answer isn't very sensitive to height because the radius in the equation is from the center of the moon, so the answer will only change a tiny amount. Note that low orbits on the Moon aren't stable. The Moon's gravity is lumpy due to its composition, so things that are low quickly become unstable and crash.