Question

How do you calculate the force of gravity?

Answer 1

Gravity:

The force that pulls a body toward the earth's center or toward any other mass-containing physical body.

Newton's Law of Gravitation:

According to Newton, the attraction between two masses is as follows,

${\mathrm{F}}_{\mathrm{gravitational}}=\mathrm{G}\frac{{\mathrm{m}}_1{\mathrm{m}}_2}{{\mathrm{r}}^2}$

Where,

${\mathrm{F}}_{\mathrm{g}}=$Gravitational forces between two masses in Newton$\left(N\right)$

$\mathrm{G}=$Universal gravitational constant which is $6.67\times {10}^{-11}\left({\mathrm{Nm}}^2/{\mathrm{kg}}^2\right)$.

${\mathrm{m}}_1\mathrm{and}{\mathrm{m}}_2=$Masses of objects

$\mathrm{r}=$Distance between the centers of mass ${\mathrm{m}}_1\mathrm{and}{\mathrm{m}}_2$.

1. Newton's Law of Gravitation is the name of this equation.
2. It is the method of figuring out the attraction between two items.
3. This equation depicts an object's weight if we are on or close to the Earth's surface.
4. Due to the numerous terms, extreme values of $G$, and value of the earth, this equation might be difficult to use.