Difference between revisions of "Gravitational constant"
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"G" is the universal gravitational constant: 6.67x10-11 N<sup>2</sup>/kg<sup>2</sup>. It is used in Newton's formula for the gravitational force between two objects, which is: | "G" is the universal gravitational constant: 6.67x10-11 N<sup>2</sup>/kg<sup>2</sup>. It is used in Newton's formula for the gravitational force between two objects, which is: | ||
| − | :Force between two objects ([[Newton | + | :Force between two objects ([[Newton_%28unit%29#Newton|N]]) = (G x mass of first object (kg) x mass of second object (kg))/distance between them<sup>2</sup> (m) |
"g" is the acceleration Earth's gravitational field exerts on objects at Earth's surface: 9.81 m/sec<sup>2</sup>. | "g" is the acceleration Earth's gravitational field exerts on objects at Earth's surface: 9.81 m/sec<sup>2</sup>. | ||
Revision as of 00:26, June 2, 2007
"G" is the universal gravitational constant: 6.67x10-11 N2/kg2. It is used in Newton's formula for the gravitational force between two objects, which is:
- Force between two objects (N) = (G x mass of first object (kg) x mass of second object (kg))/distance between them2 (m)
"g" is the acceleration Earth's gravitational field exerts on objects at Earth's surface: 9.81 m/sec2.