The earth rotates every 86,160 seconds. What is the tangential speed (in m/s) at Livermore (Latitude 37.6819° measured up from equator, Longitude 121.

The tangential speed at Livermore is approximately 284.001 meters per second.

Explanation:

Let suppose that the Earth rotates at constant speed, the tangential speed (), measured in meters per second, at Livermore (37.6819º N, 121º W) is determined by the following expression:

(1)

Where:

- Rotation time, measured in seconds.

- Radius of the Earth, measured in meters.

- Latitude of the city above the Equator, measured in sexagesimal degrees.

If we know that , and , then the tangential speed at Livermore is:

The tangential speed at Livermore is approximately 284.001 meters per second.

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