Gravitational field strength of the earth

  • #1
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Main Question or Discussion Point

Hi,

Using the formula g = [itex]\frac{GM}{r2}[/itex] I found 'g' to equal (9.792121683 x 106 [itex]\frac{N}{kg}[/itex])

The value of g is 9.8 [itex]\frac{N}{kg}[/itex]. I am wondering if I made an error in my calculations or if there is a method of simplifying to get 9.8.

Thanks,
 

Answers and Replies

  • #2
D H
Staff Emeritus
Science Advisor
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Units. Always check your units. You most likely divided by the square of the Earth's radius in kilometers.
 

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