Question

At the equator, the earth spins a distance of 25,992 miles every day. What speed does the Earth spin at in mph?

Answer 1

The earth rotates once every 23 hours, 56 minutes and 4.09053 seconds, called the sidereal period, and its circumference is roughly 40,075 kilometers. Thus, the surface of the earth at the equator moves at a speed of 460 meters per second--or roughly 1,000 miles per hour.