Gravitational Constant: Earth vs Other Planets

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The gravitational constant, G, is applicable universally and can be used in calculations involving all planets, not just Earth. It is a key component of Newton's law of Universal Gravity. In contrast, the acceleration due to gravity, represented as small g, is specific to Earth's surface conditions. This distinction is important for understanding gravitational interactions in different celestial contexts. G is referred to as the Universal Gravitational constant for this reason.
Emz19
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Quick question... Can the gravitational constant only be used for Earth or can it be used in questions regarding other planets?
 
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Emz19 said:
Quick question... Can the gravitational constant only be used for Earth or can it be used in questions regarding other planets?
Are you talking about G, the constant that appears in Newton's law of Universal Gravity? If so, then yes, it applies generally.

On the other hand, small g, the acceleration due to gravity, only applies near the Earth's surface.
 
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Ya I was talking about G in Newton's Law of Universal Gravity. So I can use G ( 6.67×10−11 N m2/ kg2 ) for all planets. Thank you for your help Doc
 
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