The earth is spinning quite fast with an equatorial speed of 465.1 m/s, 1,674.4 km/h or 1,040.4 mi/h. now iv heard many say "why don't we all fly off." iv had hour long arugments on this too. But here are the simple fact. The earth is alot wider at the equator than it is from pole to pole from the mass being pushed out from it's spin(Centrifugal force). There is one major point to understand about centifugal force the further you get from the center of spin the quicker the amount of force expiranced drops off Rapidly, like an ice skator spinning on the spot and movng their arms out there speed of rotation drops (cheap Analogy I know). But we also live with a much stronger force of graverty. This counteract the centifugal force of our earth spin with a Centripetal force. The Centripetal force only drops of with the force of graverty but the centripetal force is always greater than the centifugal force and there for we stick to the planet and not fall off. An intersting point is what happens when you get to the very center of the earth


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