system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: If someone drilled a hole completely through the Earth (through the crust, mantle, outer and inner core), and disregarding the heat and pressure, I were to drop a object through said hole, would the object "fall" to the other side or would it stay in the middle of the Earth due to gravity?
gpt
It would fall to the other side of the earth, if there was no air resistance. It fall down until it reached the center, where it would be at maximum speed, then it would continue to "fall" up until until is reached the surface. At which point it would turn to fall back again.

If you also conciser air resistance it would not reach the other side, but go back and forth until it eventually come to rest at the center of the earth.