Centrifugal force vs Centripetal force..
Earth 🌎 rotation would have to produce.. this equilibrium condition.. centrifugal vs centripetal.. just the difference in forces (or thrusts) … Bcoz of height h , of individual.. is enough to cause.. the experience of falling .. bcoz the head .. is moving faster.. through the air .. than the feet .. it basically wants to be the lesser of the two values..