Gravitational constant

G is the universal gravitational constant:

$G=6.67\times 10^{-11}\ {\mbox{N}}\ {\mbox{m}}^{2}\ {\mbox{kg}}^{-2}\$

It is used in Newton's formula for the gravitational force between two objects, which is:

Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle F = G \frac{m_1 m_2}{r^2} }

where

${F}\$ is the force between the two objects

${m_{1}},{m_{2}}\$ are the masses of each object

Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle {r} \ } is the distance between the two objects.

g is the acceleration Earth's gravitational field exerts on objects at Earth's surface:

Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle g = 9.81 \ \mbox{m} \ \mbox{sec}^{-2}}