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Looking for an intelligent argument. (Terminal Velocity)

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TheEngineer

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Re: Looking for an intelligent argument.
« Reply #570 on: August 23, 2008, 08:01:25 PM »
As stated before:

ae - ao = 0                            (1)

ao = vt/t     (by definition)         (2)

ae - vt/t =0                            (3)

t = vt/ae                                (4)

t = (22.1426m/s)/(9.8 m/s2)      (5)

t = 2.26 s
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cbarnett97

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Re: Looking for an intelligent argument.
« Reply #571 on: August 23, 2008, 08:02:25 PM »
Quote from: TheEngineer on August 23, 2008, 08:01:25 PM
As stated before:

ae - ao = 0                            (1)

ao = vt/t     (by definition)         (2)

ae - vt/t =0                            (3)

t = vt/ae                                (4)

t = (22.1426m/s)/(9.8 m/s2)      (5)

t = 2.26 s
go read wiki some more, grownups are talking
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TheEngineer

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Re: Looking for an intelligent argument.
« Reply #572 on: August 23, 2008, 08:03:08 PM »
So you can't fault my argument?  Figures.  Go back to eighth grade, kid.
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Robbyj

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Re: Looking for an intelligent argument.
« Reply #573 on: August 23, 2008, 08:04:17 PM »
Quote from: cbarnett97 on August 23, 2008, 07:59:10 PM
Quote from: Robbyj on August 23, 2008, 07:54:50 PM
I am assuming you are going to tell me...
No I am asking you if there are any other forces before we move on to the next step

Not in the equation I used, no.
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Quote from: Raist on January 22, 2009, 09:27:08 PM
Why justify an illegitimate attack with a legitimate response?
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cbarnett97

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Re: Looking for an intelligent argument.
« Reply #574 on: August 23, 2008, 08:09:29 PM »
Quote from: Robbyj on August 23, 2008, 08:04:17 PM
Quote from: cbarnett97 on August 23, 2008, 07:59:10 PM
Quote from: Robbyj on August 23, 2008, 07:54:50 PM
I am assuming you are going to tell me...
No I am asking you if there are any other forces before we move on to the next step

Not in the equation I used, no.
Ok so the only thing accelerating the object is the air accelerating past it. so it is in a state of equalibrium when its acceleration is the same as the acceleration of the air. So at t=1 the velocity of the air flowing past the object is 9.81 at t=2 it will be (9.81+9.81)- the velocity gained by the object and so on, so if you want, go 2 seconds out and calculate the objects acceleration and see if it is 9.81 otherwise it is not in equalibrium so its velocity is no longer constant if you were to compare it to the earth
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TheEngineer

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Re: Looking for an intelligent argument.
« Reply #575 on: August 23, 2008, 08:10:41 PM »
Quote from: TheEngineer on August 23, 2008, 08:01:25 PM
As stated before:

ae - ao = 0                            (1)

ao = vt/t     (by definition)         (2)

ae - vt/t =0                            (3)

t = vt/ae                                (4)

t = (22.1426m/s)/(9.8 m/s2)      (5)

t = 2.26 s
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cbarnett97

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Re: Looking for an intelligent argument.
« Reply #576 on: August 23, 2008, 08:11:44 PM »
Quote from: cbarnett97 on August 23, 2008, 08:02:25 PM
Quote from: TheEngineer on August 23, 2008, 08:01:25 PM
As stated before:

ae - ao = 0                            (1)

ao = vt/t     (by definition)         (2)

ae - vt/t =0                            (3)

t = vt/ae                                (4)

t = (22.1426m/s)/(9.8 m/s2)      (5)

t = 2.26 s
go read wiki some more, grownups are talking
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TheEngineer

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Re: Looking for an intelligent argument.
« Reply #577 on: August 23, 2008, 08:14:32 PM »
Quote from: TheEngineer on August 23, 2008, 08:03:08 PM
So you can't fault my argument?  Figures.  Go back to eighth grade, kid.
I'm waiting.
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Robbyj

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Re: Looking for an intelligent argument.
« Reply #578 on: August 23, 2008, 08:15:38 PM »
I wasn't talking about t=2, I was talking about t=2.26 which =(9.8+9.8+9.8(.26)) which when squared and multiplied by .02 gives you 9.81.
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Quote from: Raist on January 22, 2009, 09:27:08 PM
Why justify an illegitimate attack with a legitimate response?
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cbarnett97

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Re: Looking for an intelligent argument.
« Reply #579 on: August 23, 2008, 08:18:29 PM »
Quote from: Robbyj on August 23, 2008, 08:15:38 PM
I wasn't talking about t=2, I was talking about t=2.26 which =(9.8+9.8+9.8(.26)) which when squared and multiplied by .02 gives you 9.81.
You must remember that in the FE model there is no terminal velocity, there is a terminal acceleration, so you need to calculate that first before you can then relate it to other objects (ie. the earth)

so to base your calculations by using the RE model is incorrect
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TheEngineer

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Re: Looking for an intelligent argument.
« Reply #580 on: August 23, 2008, 08:20:07 PM »
My calculations were based on the FE model and my derived equations.
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cbarnett97

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Re: Looking for an intelligent argument.
« Reply #581 on: August 23, 2008, 08:22:15 PM »
Quote from: TheEngineer on August 23, 2008, 08:20:07 PM
My calculations were based on the FE model and my derived equations.
Well then your failure is complete
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Robbyj

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Re: Looking for an intelligent argument.
« Reply #582 on: August 23, 2008, 08:26:16 PM »
There is a terminal velocity. Once Anet=0 the relative velocity will be constant which is the same as terminal velocity.
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Quote from: Raist on January 22, 2009, 09:27:08 PM
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TheEngineer

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Re: Looking for an intelligent argument.
« Reply #583 on: August 23, 2008, 10:33:23 PM »
Quote from: cbarnett97 on August 23, 2008, 08:22:15 PM
Quote from: TheEngineer on August 23, 2008, 08:20:07 PM
My calculations were based on the FE model and my derived equations.
Well then your failure is complete
Yet, you can't dispute my equations.  So the failure must be yours.  But I am sure you are used to that.
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cbarnett97

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Re: Looking for an intelligent argument.
« Reply #584 on: August 23, 2008, 10:46:26 PM »
Quote from: Robbyj on August 23, 2008, 08:26:16 PM
There is a terminal velocity. Once Anet=0 the relative velocity will be constant which is the same as terminal velocity.
Yes but how you get to that number is different and that is the difference between the 2 models
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cbarnett97

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Re: Looking for an intelligent argument.
« Reply #585 on: August 23, 2008, 10:50:36 PM »
Quote from: TheEngineer on August 23, 2008, 10:33:23 PM
Quote from: cbarnett97 on August 23, 2008, 08:22:15 PM
Quote from: TheEngineer on August 23, 2008, 08:20:07 PM
My calculations were based on the FE model and my derived equations.
Well then your failure is complete
Yet, you can't dispute my equations.  So the failure must be yours.  But I am sure you are used to that.
Your equations have been shown to be correct with regard to the RE and ver incorrect with regards to the FE
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TheEngineer

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Re: Looking for an intelligent argument.
« Reply #586 on: August 23, 2008, 10:54:51 PM »
Have they been shown to be so?  I don't remember them being shown so.  Perhaps you can quote the post in which this showing took place?  Because, as far as I can tell, my equations have been shown to be correct for the FE.
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cbarnett97

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Re: Looking for an intelligent argument.
« Reply #587 on: August 23, 2008, 10:56:34 PM »
Quote from: TheEngineer on August 23, 2008, 10:54:51 PM
Have they been shown to be so?  I don't remember them being shown so.  Perhaps you can quote the post in which this showing took place?  Because, as far as I can tell, my equations have been shown to be correct for the FE.
so acceleration caused by gravity is the equivalent to acceleration caused by air, wow that is new to me
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Robbyj

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Re: Looking for an intelligent argument.
« Reply #588 on: August 23, 2008, 10:58:55 PM »
Quote from: cbarnett97 on August 23, 2008, 10:46:26 PM
Quote from: Robbyj on August 23, 2008, 08:26:16 PM
There is a terminal velocity. Once Anet=0 the relative velocity will be constant which is the same as terminal velocity.
Yes but how you get to that number is different and that is the difference between the 2 models

I used the same equation you did.
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Quote from: Raist on January 22, 2009, 09:27:08 PM
Why justify an illegitimate attack with a legitimate response?
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cbarnett97

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Re: Looking for an intelligent argument.
« Reply #589 on: August 23, 2008, 11:00:58 PM »
Quote from: Robbyj on August 23, 2008, 10:58:55 PM
Quote from: cbarnett97 on August 23, 2008, 10:46:26 PM
Quote from: Robbyj on August 23, 2008, 08:26:16 PM
There is a terminal velocity. Once Anet=0 the relative velocity will be constant which is the same as terminal velocity.
Yes but how you get to that number is different and that is the difference between the 2 models

I used the same equation you did.
a=sqrt(cdpAv2)/2m

Where v is the velocity of the air passing the object
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Robbyj

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Re: Looking for an intelligent argument.
« Reply #590 on: August 23, 2008, 11:09:52 PM »
Now where did your square root come from?
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Quote from: Raist on January 22, 2009, 09:27:08 PM
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TheEngineer

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Re: Looking for an intelligent argument.
« Reply #591 on: August 23, 2008, 11:16:12 PM »
Quote from: cbarnett97 on August 23, 2008, 10:56:34 PM
so acceleration caused by gravity is the equivalent to acceleration caused by air, wow that is new to me
Equal, yes.  No wonder you have failed so badly in this thread...
« Last Edit: August 23, 2008, 11:18:35 PM by TheEngineer »
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sokarul

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Re: Looking for an intelligent argument.
« Reply #592 on: August 23, 2008, 11:22:42 PM »
Quote from: TheEngineer on August 23, 2008, 11:16:12 PM
Quote from: cbarnett97 on August 23, 2008, 10:56:34 PM
so acceleration caused by gravity is the equivalent to acceleration caused by air, wow that is new to me
Equal, yes.  No wonder you have failed so badly in this thread...
Irony.
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cbarnett97

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Re: Looking for an intelligent argument.
« Reply #593 on: August 23, 2008, 11:32:12 PM »
Quote from: Robbyj on August 23, 2008, 11:09:52 PM
Now where did your square root come from?
disregard the square root but everything else is correct
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Robbyj

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Re: Looking for an intelligent argument.
« Reply #594 on: August 23, 2008, 11:39:22 PM »
Quote from: cbarnett97 on August 23, 2008, 11:32:12 PM
Quote from: Robbyj on August 23, 2008, 11:09:52 PM
Now where did your square root come from?
disregard the square root but everything else is correct

Then that is what I used.
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Quote from: Raist on January 22, 2009, 09:27:08 PM
Why justify an illegitimate attack with a legitimate response?
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TheEngineer

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Re: Looking for an intelligent argument.
« Reply #595 on: August 25, 2008, 08:18:26 AM »
Since none of my equations have been shown to be incorrect, I now declare:

A victory for FE!
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Jack

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Re: Looking for an intelligent argument.
« Reply #596 on: August 25, 2008, 08:20:15 AM »
Cheers!
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TheEngineer

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Re: Looking for an intelligent argument.
« Reply #597 on: August 26, 2008, 08:06:23 AM »
Well, it's been three days and cbarnett and the other RE'ers seem to have run away. 

I now declare this issue settled and this thread linkable for future questions of this sort.


Victory for FE!
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Dr Matrix

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Re: Looking for an intelligent argument.
« Reply #598 on: August 26, 2008, 08:08:53 AM »
All the debating went on overnight for me, plus I just couldn't handle the infinite quotes within quotes. Yep, I fail.

Meh. Oh well.
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Sir_Drainsalot

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Re: Looking for an intelligent argument.
« Reply #599 on: August 26, 2008, 08:52:07 AM »
Yet another thread demonstrates victory for FE!
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