Common, Earth's surface rotation speed on equator is just 463.3m/s (does not matter at all). What actually matters is 2nd Law of Friction as I pointed out previously. Now some fun fact, if you could cancel gravitation. "Centrifugal Force" on equator is giving you about 0.0337 m/s^2 (that's quite nothing once compared to g on equator 9.2 m/s^2). Speed at which earth rotates is quite insignificant. But if it rotated 17.07 times faster. (291.5x higher energy required) => Centrifugal force would nullify gravitation. In other words that's why your favorite UFO using "anti gravity" moves up so slowly.