# What is the size of the gravitational force that Earth exerts on the Moon?

##
The mass of the Moon is #7.35*10^22kg# , while that of Earth is #5.98*10^24kg# . The average distance from the center of the Moon to the center of Earth is #384,400 km# .

The mass of the Moon is

##### 1 Answer

Nov 12, 2017

We use Newton’s universal law of gravitation,

#### Explanation:

I get

The minus sign in the answer is because force is a vector quantity, written as *opposite* direction to the distance as measured outwards from the Earth.