Question

If gravity or any inverse square law of distance like coulomb's force varies inversely wit the square of distance, then why don't our hands stick together inseparably (the force should be infinite mathematically right?)

Answer 1

calculate the magnitude of the force and see how small it is...

Answer 2

But at r=0 shouldnt the force be infinite?

Answer 3

Where are you measuring from that r=0?

Answer 4

You never actually touch hands, you just feel their force. Remember that on the outside of everything is several shells of electrons which are all positively charged and repelling each other. So you will never get close enough unless you clap your hands an appreciable fraction of the speed of light like a particle accelerator. =P

Answer 5

NEGATIVELY CHARGED***** lol

Answer 6

Also we should add, once you get to the scale of atoms... the inverse square law becomes a bit hazy. It's much harder to tell how gravity acts on such small scales. Remember, physics formulas don't tell you EVERYTHING about the universe, they just try to capture as much information about it in one line. Sometimes the information a formula gives you may not be appropriate for the scale you're talking about. There is nothing wrong with this mind you! It's just the way the universe works and the best we can do is approximate it's many wonders :)