Question

since F=GmM/R^2, when you put both objects infinitely close to one another, isn't the gravitational force infinitely large such that it sticks together? Analogy: You cannot separate 2 fingers together apart.

Answer 1

yes it is

Answer 2

liljuggalo, it isn't because i can exert a numerical force to separate my fingers.

Answer 3

im retarted

Answer 4

The force GMm/R^2 is only for point sized objects not for stuff like your finger...
Nice analogy though \m/

Answer 5

Any equation in physics involves one or more approximations (here, for example, the idea of point masses) and a range of values over which it apples (here, r > 0 and, of course, mass greater than or equal to zero). So, you are not "allowed" to use this equation this way. (However, progress in physics often comes from worrying about what happens outside the range of values the equations are designed for and examining the equations for clues as to how they should be modified to extend their validity. )

Answer 6

Well, technically speaking nothing ever "touches" the strong force works at such as small distance and is so strong that it always keeps to objects from physically making contact.

Answer 7

when it comes to the Gravity Law,we should understand that it only makes sense in the macroscopic stuff.Since you mentioned that one put both objects infinitely close to one another---we have to use the conceptions appear in Quantum Mechanics. Yes, we want to unite them but that as long as we go in science,'grand unified theories' you can search that if you like~

Answer 8

thanks all for the replies(:\[`\]

Answer 9

Your fingers will repel each other when they get close enough. This is to stop you from being able to push your fingers through each other, and is generally considered to be a good thing.