- #1

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I need some help understanding this question.

If we take a mass of a person as 100kg, what would he weigh at the poles and the equator, in Newtons? How do I do this please?

Thanks and much appreciate some help.

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- Thread starter cbere2013
- Start date

- #1

- 1

- 0

I need some help understanding this question.

If we take a mass of a person as 100kg, what would he weigh at the poles and the equator, in Newtons? How do I do this please?

Thanks and much appreciate some help.

- #2

mathman

Science Advisor

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Above is a list of references. The main point is gravity effect at poles is slightly stronger due to lesser distance from center of the earth.

- #3

HallsofIvy

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Taking the "squashed" shape of the earth into effect, as mathman suggests, would be more accurate but much harder, requiring you to use "F= -(Gmm)/r^2" with different values for the distance from the center of the earth to the pole and from the center of the earth to the equator. And, of course, you should still allow for the apparent reduction in force due to the rotation of the earth.

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