Gravitationsgesetz
law of gravitation
Description:
According to the law of gravitation, two mass points (m1 and m2) with a distance r between them exert a Force on each other in the direction of the line connecting them. The two force vectors (and ${{F}_{2}}$) acting on the masses ${{m}_{1}}$ and ${{m}_{2}}$ are equal but act in opposite directions. The gravitational force is calculated as follows: $F=G\frac{{{m}_{1}}{{m}_{2}}}{{{r}^{2}}}$. G is the gravitational constant.