Topic, The Formula for Frictional Dynamics...

  the formula is designed to look scarier than it is
it just subtracts F from V over and over, or if V<0 (the V>0 requirement is a lie, should be V=/=0) it adds F to V over and over
the formula itself is a lie, and cars show this
two identical cars are rolling along a road, no pedals are pressed, no brakes are on, nothing stopping them except friction and nothing pushing them along
one is going at 100mph and the other at 20mph, according to that formula the speeds both decrease linearly and thus the cars after whatever period of time would be at 80 and 0 simultaniously. this is wrong, the fast car would infact be going less than that and the slow car will never have completely stopped(it will in real life due to other factors).
[edit] another flaw is that the formula doesnt stop itself by checking if nF is larger than V, meaning that the speed will become negative and there are 3 possible outcomes(0 and +-Inf)

  that is one crazy formula

  ':_

For some reason, I have a feeling that this will do nothing in Flash. |:p

  oh...just remembered

  I just worked it out...that sucks
if V=10 and F=2 then it goes 10 8 6 4 2 0 0 0 0 0
that isnt frictional deceleration thats just taking 2 off each time
should be V/(1+F)^n
[edit] in other words if you have 2 balls with the same frictional resistance and a(ball 1) is moving twice as fast as b(ball 2), then a initially experiences double the resistance to b
in yours they both would experience the same

  That was the joke.

  Nothing... Nothing can be divided by 0

  Garygoh, you're a math expert. Can you solve this equation for me? My calculator won't do it for some reason.

What is 3 divided by 0?

  same here rocky

i know how you feel

  D:

I'm very good at math but this...

  I like math and I think thats just overdoing it...
friction=repetitive division

  Math? Holy sh- *head asplodes*

  the way friction works is that it divides the speed by a number over and over
thats all you need to know

  I have no idea what-so-ever that is, but it looks freaking awesome.

  I think so. If F≥V, then it moves only V pixels. And if it doesn't move all the time (kept adding 0 infinitively), it stopped by friction.

  I just use a simpler formula
divide the speed by about 1.01 every frame at 30fps
I dont think we need excessively precise stuff :P

  ah, k, now I get it. :p but if F is larger then V then always (|V-F|+V-F)/2= 0/2 =0
so with this formula, if the frictional deceleration is larger then the velocity, then you don't go forwards?

  V is expressed as pixels per frame. Also, we use n to be term for this summation.

  The formula is fine. What's n? is V expressed in pixels per seconds?

  I get what its for, but a lot of your equation is a mystery to me. Any I dont really know about putting formulae into games, :P. You've just got to make a game now,

  This is useful if you want a launch speed that satisfies the equation given the amount of friction and desired length.

  My head-

  After hours of experimenting the frictional dynamics in Game Maker 8, here, I made this formula by myself!

The number of pixels moved from the start, D, is defined by the formula:

where V is the initial velocity and F is the amount of frictional deceleration.