how fast does the earth rotate in 24 hours?

Question

what is the speed of the rotation, no links please, just answers will be good.
because we all know the earth is making a full 360 degree angle on a 23.5 degree axis, but how fast does it rotate?

Answer 1

It depends on your latitude. The general equation is (C/24) * cos(θ) mph, where C is the circumference of the Earth and θ is your latitude (either northern latitude above the equator or southern latitude below the equator).

For example, if you are in Atlanta, latitude about 34° N, then you are spinning about (25000/24) * cos 34°, about 864 mph.

Answer 2

The equatorial circumference is about 24.900 miles. It does that in very close to 24 hours. So, if you're on the equator, your moving at about 1037 miles an hour. But, as you move away (north or south) from the equator, the speed necessary to rotate around the axis is less.

If you really need to know how fast you’re going,

In miles per hour,
s = 7926 x 3.141592 x cos(Lat) ÷ 24 Where “Lat” is the latitude… north or south.

Answer 3

You've provided all the information yourself: all you need now is a calculator:

Earth's rotational speed (in rad/s, the standard unit) =

(360deg/24hr) * (2π rad/360deg) * (1hr/3600s) = 7.2722e-5 rad/s

The 23.5 deg tilt of the Earth's axis does not change the rotational speed -- it just defines the direction of the angular momentum vector.

Answer 4

I agree with the first answer. It is about 24,000 miles around and turns once in 24 hours so it is about 1,000 MPH at the equator. Much slower at the poles of course. Much less than 1 MPH if you are only 1 foot from the pole.

Answer 5

Agree with above.

Values vary slightly but 1037 -1040 mph is the commonly accepted rotational speed AT THE EQUATOR.

Any other position would be multiplied by the cosine value of your latitude

Answer 6

The earth has a circumference of approximately 24900 miles.
so 24900/24
or 1037.5 miles per hour at the equator