Q.What do you mean by gravitational constant? State its SI units.

[!TLDR] G is the constant of proportionality in Newton's law of gravitation, with SI units N m^2/kg^2. [!ANSWER] $G=6.67\ti …

The gravitational constant G is the universal constant of proportionality that appears in Newton's law of gravitation, $F=Gm_1m_2/r^2$ -- it is numerically equal to the gravitational force (in newtons) between two 1 kg masses placed exactly 1 metre apart. Unlike g (acceleration due to gravity), which varies from planet to planet and even across the Earth's own surface, G is a truly UNIVERSAL constant, the same value everywhere in the universe, and is measured experimentally using a Cavendish balance. Its SI unit, derived by rearranging $F=Gm_1m_2/r^2$ f …

Define G as the proportionality constant in $F=Gm_1m_2/r^2$, derive its SI unit by rearranging the for …

Confusing the universal constant G with the acceleration due to gravity g, which are related ($g=GM/R^2$) but are very differe …