The earth is rotating at 1,674 kilometres per hour (1,046 miles per hour). It is slowing down, thus periodically time is added (a leap second) to our clock. This last happened June 30 2015 at 7:59:59pm. Extrapolating backwards, the earth was travelling much faster in the past. Centrifugal (rotational) force at high speed flings objects outward. A higher speed would have destroyed the earth: ground, water and plants. The atmosphere would fly into space and nothing could live. The truth is, the earth is young. It’s speed has been increasing only for the past 4000 – 6000 years, probably since the destruction and world wide changes caused by the global flood approximately 4,500 years ago.