2.6 Law of gravitation

The law of gravitation is that F = –G.m1.m2/r^2

 

More info: http://www.upscale.utoronto.ca/GeneralInterest/Harrison/Flash/ClassMechanics/TwoBallsGravity/TwoBallsGravity.html

http://www.cs.sbcc.cc.ca.us/~physics/flash/The%20Monkey%20and%20the%20Hunter.html

http://csep10.phys.utk.edu/astr161/lect/history/newtongrav.html