August 21st, 2003, 12:53 PM
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Join Date: Nov 2002
Location: Finland
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Re: Calculating a planet\'s mass & gravitational pull
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Originally posted by dogscoff:
For Earth I get a gravity value of 9840866.19 (starting with a diameter of 12756km and density of 5520kg/m^3).
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Did you remember convert the diameter to meters? The answer (9840866.19) is right, but the unit would be μm/s^2.
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I'm still a little fuzzy on the kg-1 s-2, although I now understand that it's just the unit by which gravity is measured. How would you pronounce it? What does that s stand for? Is it seconds?
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Yes s is seconds. s-2 is equal to s^-2 which is equal to 1/s^2
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