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The gravitational acceleration at the equator is the least and at the pole is the maximum due to the rotation of the earth on its axis.Why???

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- Thread starter Milind_shyani
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The gravitational acceleration at the equator is the least and at the pole is the maximum due to the rotation of the earth on its axis.Why???

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Galileo

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arildno

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BobG

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However, the way the question is worded, I think it's addressing centripetal acceleration. Which point will have a larger linear velocity due to the rotation of the Earth: a point on the equator or a point on one of the poles?

Both the oblateness of the Earth and centripetal force contribute to reducing the net force, and the resulting acceleration, at the equator (with oblateness having nearly twice as much affect).

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arildno

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I never said that Galileo was wrong..

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BobG

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I did (or at least said that his answer didn't answer the question that was asked).arildno said:I never said that Galileo was wrong..

I didn't comment on your answer because I didn't understand it. :rofl:

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berkeman

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andrevdh

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Hootenanny

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[tex]g_{a} = g - r\omega^2\cos^2\theta[/tex]

where [itex]g_{a}[/itex] is the apparent force of gravity and [itex]\theta[/itex] is latitude. This assumes the earth is spherical, but is a good approximation for a non-spherical earth.

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