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View Full Version : Factoring In Air Resistance

Termlab
02-04-2005, 05:45 AM
A lot of people don't understand that everytime you double your speed, air resistance increases four-fold and rolling resistance increases as well because of downforce ... They also don't understand that your vehicle transmits less force in higher gears ... In order to accelerate, Force must be greater than Resistance ...

Ra = 0.5*p*Cd*Af*V^2

heres where ya lost me...

Acidburn
02-04-2005, 05:10 PM
you're sick Jmac, sick and way too not busy

2kchevy06civic
02-04-2005, 05:16 PM
A lot of people don't understand that everytime you double your speed, air resistance increases four-fold and rolling resistance increases as well because of downforce ... They also don't understand that your vehicle transmits less force in higher gears ... In order to accelerate, Force must be greater than Resistance ...

Ra = 0.5*p*Cd*Af*V^2

heres where ya lost me...

x2 :( :crap:

Acidburn
02-04-2005, 06:04 PM
I was working on designs most of the night, started getting mentally exhausted, did this ...

How's that not busy ?

because you have time to do this, you could have just gone to sleep

Black_Jesus
02-04-2005, 07:21 PM
you are one smart f**ker jmac... props

ighettoboyi
02-06-2005, 12:52 PM
wait so what does this prove? i thought everyone knew tib v6's are on high performance 4banger level....

theCybe
02-06-2005, 09:51 PM
When Jmac takes sh1ts, they're just little piles of statistics and formulas.

Strecker25
02-06-2005, 11:07 PM
physics is sweet

just wish i was better at it

paikiah
02-07-2005, 12:45 AM
lol~

whoever said tiburons were fast and cheesed you off enough to write up something like this?

yz_gt69
02-07-2005, 01:26 AM
lol x2
wicked effort tho

marleyskater420
02-07-2005, 01:55 AM
did you honestly just copy and paste this?

otherwise. how come you dont work on cars for a shop or something on the side?

you seem to know way to much **** to just sit there and do nothing.

tRiGgEr
02-07-2005, 01:49 PM
It's just math. Everything in the world can be broken down in to a equation. With the exception of girls and hormones.

Nice job.

ighettoboyi
02-07-2005, 10:13 PM
180 mph?!?!?! i woulda laughed at his face. even if he claimed 140 i'd laugh

paikiah
02-07-2005, 10:40 PM
lol~

I see 500BHP tiburons here time to time, using NOS or turbo for their "sprint" cars. I still don't think they can reach 180MPH.

I'm sure your friend misread KMH and MPH.

180MPH would be possible with a seriously whacked speedo.

dan7532
02-14-2005, 02:55 PM
A lot of people don't understand that everytime you double your speed, air resistance increases four-fold and rolling resistance increases as well because of downforce
You're assuming a production vehicle has downforce. Most actually will lift at speed, if I'm not mistaken.

Jonahdude
02-14-2005, 03:00 PM
You're assuming a production vehicle has downforce. Most actually will lift at speed, if I'm not mistaken.

Well, if your hood and windshield are slanted, then you're at least creating a bit of downforce. Might not be enough to counter whatever lift you're creating, however.

jujumantb
02-14-2005, 03:02 PM
IIRC, newer cars do indeed create more upforce as they increase speed.

paikiah
02-14-2005, 07:49 PM
downforce or up, it's still resistance, isn't it?

jellyfish420
02-14-2005, 09:26 PM
downforce or up, it's still resistance, isn't it?
up force will reduce rolling resistance, but not by enough to make up for the drag that it creates...

btnhfan
02-16-2005, 08:20 PM
Jmac now all you have left to do is find the end of pi. :)