"Gravity isn't just a good idea, it's the law!"
- Adam Savage, MythBusters, 2009
In the television show MythBusters, Adam Savage, Jamie Hyneman and their team test popular myths for their accuracy. In one episode, they determine that a bullet shot level to the ground and a bullet dropped from the same height will hit the ground at the same time. The bullets have small trajectories relative to the earth's surface, so the force of gravity acting on each bullet is the same. Since the bullets have no
upward momentum, they are both already at the highest points of their paths the instant they are released.