# Find gravitational force

## Homework Statement

what is the gravitational force acting on a person due to another person standing 2 meters away? assume each individual has 59kg mass.

## Homework Equations

looks like i tried to use w=mgy
but that was wrong.
with that you get like 1156.4

## The Attempt at a Solution

the answer is 5.8*10^-8N but idk how to get it

Doc Al
Mentor
Look up Newton's law of universal gravity. (W = mg is the weight of a body near the earth's surface--the gravitational attraction between the earth and the body. You want the force between the two bodies.)

so Fg=G* (m1m2)/r^2 is g 9.8 or fg?

Doc Al
Mentor
so Fg=G* (m1m2)/r^2
That's the correct equation. But there's no 'g' in that equation. What you need is the gravitational constant G. (Look it up.)

its 6.673*10^-11 thanks i got it now