Odisaodi said:
Idk but I wonder if u will jump higher if ur one the side of the earth away from which way it's travelling than if u were to jump on the side it's going towards

also consider: what if the entire solar system is moving in the opposite direction?
or the galaxy?

the sun's gravity might affect you though, e.g. if you jump during the day vs. during the night

@bipface: Dont forget the moon. The moons own gravity affects the tides and stuff. The sun does affect us to a very miniscule degree. Tidal force plays a role here. Pretty sure you jump higher during the day.