# At the poles, how fast does the earth spin?

Assuming that the equatorial radius is 6378 km = 3963 miles, the spin speed near the equator (latitude 0 deg) is 1037.5 mil/’h =1669.7 km/h, nearly.
At latitude ##theta## deg N or S, the spin=speed is cos ##theta## X spin-speed at the equator.
For example, at latitude 60 deg N or Sm the speed is halved.
This way, we can say, Poles (lat = 90 deg and cos 90 = 0) are not rotating
Of course, the angular speed 15 deg/h remains the same , everywhere.”,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
What is a lever?,A lever is a simple machine comprised of a long beam or rod that is fixed to a pivot point (fulcrum) onto which a load is attached and an effort force is applied.

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