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 (unit of measurement)|N]]) = (G x mass of first object (kg) x mass of second object (kg))/distance between them<sup>2</sup> (m) | + | :Force between two objects ([[Newton (unit of measurement)|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: 9.8 m/sec<sup>2</sup>. | ||
Revision as of 00:21, 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: 9.8 m/sec2.