system
Given the following post, respond as if you're commenting on Reddit:
human
If you were traveling forward as fast as a bullet, what would happen if you shot a bullet towards the direction you were heading?
gpt
Assuming you're on a normal Earth environment, it would initially move forwards twice as fast *relative to the ground* as a bullet fired from a gun that is stationary *relative to the ground* would. Basically, the gun has no way to "know" that it's moving - the bullet comes out at the same speed relative to the gun no matter what.

However, the bullet will slow down more quickly, because it's going faster relative to the atmosphere, and will experience more drag force.