# What is the diference between law of gravitation and universal law of gravitation?

##### 1 Answer

Law of gravity on Earth has been simplified from the universal law.

#### Explanation:

Newton's universal law of gravitation:

This gives the forces acting on two masses

G is the gravitational constant

Because we are usually dealing with gravity near the surface of the earth it is possible to simplify the above to combine the constant factors into one approximate constant.

Using the mass of Earth as a constant for