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How much effect (percentage) does gravity have on planes flying at 40,000 feet instead of 10,000 feet above the ground?

By psych31mwo says call me Mark Asked Dec 28 2007 10:54PM
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First Answer

by EL1 2 on Dec 28, 2007 at 11:33 pm Permalink

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The force of gravity is inversely related to the square of the distance of two objects.

If something is 10,000 feet above the surface of the Earth (whose diameter is 3963 miles), it is 3965 miles from the center of the Earth at the equator. That distance squared is 15,722,010.

If somethign is 40,000 feet above the Earth, its distance squared is 15,767,100. The gravity is 1.00287 times stronger at 10000 feet.
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Avatar jerv Dec, 29 2007 at 08:08 PM
Saved me typing
*+6*
The Inverse Square law is widely overlooked and/or misunderstood.
Avatar EL1 2 Dec, 29 2007 at 08:09 PM
Thanks.


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