system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: If I jump how long must I be above the ground for the earth to noticeably rotate below me.
gpt
You won't notice it for two reasons.

1) You are rotating at the same speed as the earth, so when you jump, you will continue to rotate with the Earth rather than staying still.

2) You are being pushed on by the atmosphere in the direction of rotation, so there is no drag to slow you down once in the air. The air around you rotates at the same speed as the Earth.