Gravitational force between 2 people

[SOLVED] Gravitational force between 2 people

OK, this is my first time doing this so I'm completely lost.

1. The problem statement, all variables and given/known data
Find the force of attraction between a 60kg student and another student of mass 80kg, 1.4m away.

2. Relevant equations
G = 6.67 * 10[tex]^-11[/tex] Nm[tex]^2[/tex]/kg[tex]^2[/tex]

Fg = [tex]\frac{Gm_1m_2}{r^2}[/tex]


3. The attempt at a solution
I tried [6.67 * 10^-11 (60kg)(80kg)] / 1.4m

But I'm wrong.

Your help is appreciated.
 
457
0
r^2, mate; not r.
 
Wow what a mistake.. Thanks a lot!
 

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