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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_%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>.