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Distance

the speed of ...

Question

the speed of the earths rotation decreases from the equator to the poles . why?

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Solution

As we move poleward, Earth's circumference decreases and therefore the speed of rotation decreases slightly since the equatorial belt of the Earth has to cover more distance than polar belt in same amount of time.

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g

=acceleration due to gravity near the poles and

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is the radius of earth) (Ignore equatorial bulge)

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