According to Galileo two object of different weights, subjected to free fall will reach the ground at the same time in a vacuum while at different time in the atmosphere. What determines the fall of one object before the other to the ground in the atmosphere?

Question

niyex · Answer

Ironic isn't it? i asked a question and i answered it myself!



the reason why the heavier object fall faster than the other is because air and friction has little effect on the the first object compare to the other.
 for instance, if i where to drop a hammer and a piece of a paper the hammer will drop faster than the paper because  there is less effect of air or friction on the hammer compared to the paper. 
weight has nothing to do with it

mjdennis · Answer

So, imagine instead that you have a 9x12 piece of paper, and a wrapped ream (500 sheets) of paper like you buy in the store.  The package is 500 times more massive, like the hammer, but it has the same cross section, so air friction should be the same as on the sheet of paper.  Part of your explanation no longer works...

niyex · Answer

it does

in as much as the mass of the object is more than the preceeding object air and friction has less impact on the wraped i ream compared to the single sheet. Its that simple!

anonymous · Answer

@niyex 
Your second answer is the correct one.
Now, could you turn it into a formula proving this point?