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# How fast does the world spin?

Question #75533. Asked by jarokn2007. (Feb 06 07 7:50 PM)

kitty1002

The rotational speed of the Earth at the equator is about 1,038 miles per hour. The atmosphere at the equator is also slightly thicker due to rotation, and you weigh slightly less. At mid-latitudes, the speed of the Earth's rotation decreases to 700 to 900 miles per hour.

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 Feb 06 07, 8:05 PM
phoenixx_1965

Equatorial circumference (24901.55mi) divided by 23.934 solar hours per day = 1,040.43 m/h.
As you go either north or south, this speed decreases to zero at the very point of either pole.
As a funny example: one mile away from either pole the speed is down to only 689 feet per hour!

 Feb 07 07, 12:14 AM
What-A-Mess

There is NO zero point. At the axis, even the smallest molecule is in rotation.

 Feb 07 07, 1:09 AM
electricmonk

The Earth takes just over 23 hours and 56 minutes to complete one rotation. In relation to the sun it makes one apparent rotation in just a fraction under 24 hours. The reason for the difference is accounted for by the fact that the Earth orbits the sun approximately once a year. The rotational speed is very gradually decreasing.

 Feb 07 07, 6:05 AM

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