How Strong is the Gravitational Pull Between Two Students?

[dance_sg]

Homework Statement

what is the gravitational attraction between two students with masses of 70 kg and 50 kg, if they are 1.5 m apart?

Homework Equations

Fg=Gm1m2/r^2

The Attempt at a Solution

so my Fg is 6.67 x 10^-11, m1 is 70 kg and m2 is 50 kg. for my radius, do i just use the 1.5 m and plug it into the formula? or no i need to do something else?

 

[theRIAA]

http://www.school-for-champions.com/SCIENCE/gravity_gravitation.htm

that sounds correct. The force should be very small.