Need a little Math Help

Jeff Teuton · 05-18-2015, 02:21 PM

How much distance does a car going 141.5 mph cover in 2/10000 seconds or to be more exact 22/100000 seconds. We are trying to figure it out, but it's a little over our heads.

Jack McCarthy · 05-18-2015, 02:26 PM

need more info ...
you did not factor in any BEER...

thats a variable, so its important

captain jack

Jeff Stout · 05-18-2015, 02:31 PM

Im going with a un educated guess. .48 of a inch if your stating .0002 (2/10000)

Tom Rix · 05-18-2015, 02:35 PM

0.0985 Inches.. Buick math.

Less than a tenth of an inch?

JeremyDuncan · 05-18-2015, 02:40 PM

I got 0.54 inches. Or basically 1/2 inch.

Jeff Teuton · 05-18-2015, 03:05 PM

Capt, no beer that day, maybe that's the trouble. That is what Kevin lost by in Atlanta .0002. So somewhere between a tenth inch and a half inch. I have a comparison to that, but not here. Thanks guys.

Larry Hill · 05-18-2015, 03:24 PM

Using the Kentucky wet finger in the air method I'm a going guess .4980792". I apologize that I was unable to get my shoes off (that Velcro is some tuff stuff) to give you a more accurate number!

Mike Pearson · 05-18-2015, 03:40 PM

I came up with .054 inches. would not be visible by the naked eye with the best cameras. I had a round where both of the cars had exactly the same RT to the thousandth and ran exactly the same over our dials to the thousandth. I won the round. not sure how the computer picked the winner. We both just shook our heads on that run.

HawkBrosMav · 05-18-2015, 04:14 PM

I also got .547 inches..

Not to completely over complicate things but I've always wanted to know what others think about how the difference in speeds of the 2 cars would change this calculation? Or if we know one or both guy(s) was/were on the brakes does the computer system give us enough info to accurately calculate this distance? Would we not actually want to know the rate of acceleration not the measured MPH to get this distance totally correct? or am I just over thinking it?

the .547 in a very good estimate to me but is it truly the distance between the 2 cars when the first one crosses the finish line?

Brad

Troy Henderson · 05-18-2015, 05:10 PM

Without doing all the conversions to complicate it..

1 mph = 17.6 inches/second

So: 141.5*17.6 = 2,490.4 inches/second

2,490*(2/10000) = 0.498 inches

My guess anyway.

05-18-2015, 02:21 PM	#1
Jeff Teuton VIP Member Join Date: Jan 2002 Location: Houma, LA Posts: 2,717 Likes: 2 Liked 326 Times in 50 Posts	Need a little Math Help How much distance does a car going 141.5 mph cover in 2/10000 seconds or to be more exact 22/100000 seconds. We are trying to figure it out, but it's a little over our heads. __________________ Jeff Teuton 4022 STK

05-18-2015, 02:26 PM	#2
Jack McCarthy VIP Member Join Date: Feb 2002 Location: lyndon ky. ... louisville area Posts: 1,284 Likes: 22 Liked 352 Times in 92 Posts	Re: Need a little Math Help need more info ... you did not factor in any BEER... thats a variable, so its important captain jack __________________ Jack McCarthy 3609 STK "the Captain"

05-18-2015, 02:31 PM	#3
Jeff Stout VIP Member Join Date: Dec 2001 Location: phoenix Posts: 1,420 Likes: 53 Liked 663 Times in 260 Posts	Re: Need a little Math Help Im going with a un educated guess. .48 of a inch if your stating .0002 (2/10000)

05-18-2015, 02:35 PM	#4
Tom Rix Junior Member Join Date: Apr 2003 Location: Spring Grove, IL Posts: 44 Likes: 0 Liked 0 Times in 0 Posts	Re: Need a little Math Help 0.0985 Inches.. Buick math. Less than a tenth of an inch?

05-18-2015, 02:40 PM	#5
JeremyDuncan Member Join Date: Apr 2010 Posts: 254 Likes: 928 Liked 280 Times in 69 Posts	Re: Need a little Math Help I got 0.54 inches. Or basically 1/2 inch.

05-18-2015, 03:05 PM	#6
Jeff Teuton VIP Member Join Date: Jan 2002 Location: Houma, LA Posts: 2,717 Likes: 2 Liked 326 Times in 50 Posts	Re: Need a little Math Help Capt, no beer that day, maybe that's the trouble. That is what Kevin lost by in Atlanta .0002. So somewhere between a tenth inch and a half inch. I have a comparison to that, but not here. Thanks guys. __________________ Jeff Teuton 4022 STK

05-18-2015, 03:24 PM	#7
Larry Hill Live Reporter Join Date: Oct 2004 Location: Hickory, Ky Posts: 10,294 Likes: 1,642 Liked 9,505 Times in 1,970 Posts	Re: Need a little Math Help Using the Kentucky wet finger in the air method I'm a going guess .4980792". I apologize that I was unable to get my shoes off (that Velcro is some tuff stuff) to give you a more accurate number! __________________ IHM Used Parts https://ihmusedparts.com 888-821-1817

05-18-2015, 03:40 PM	#8
Mike Pearson VIP Member Join Date: Mar 2007 Posts: 2,324 Likes: 547 Liked 1,652 Times in 505 Posts	Re: Need a little Math Help I came up with .054 inches. would not be visible by the naked eye with the best cameras. I had a round where both of the cars had exactly the same RT to the thousandth and ran exactly the same over our dials to the thousandth. I won the round. not sure how the computer picked the winner. We both just shook our heads on that run. __________________ Mike Pearson 2485 SS

05-18-2015, 04:14 PM	#9
HawkBrosMav Member Join Date: Apr 2009 Posts: 356 Likes: 6 Liked 277 Times in 68 Posts	Re: Need a little Math Help I also got .547 inches.. Not to completely over complicate things but I've always wanted to know what others think about how the difference in speeds of the 2 cars would change this calculation? Or if we know one or both guy(s) was/were on the brakes does the computer system give us enough info to accurately calculate this distance? Would we not actually want to know the rate of acceleration not the measured MPH to get this distance totally correct? or am I just over thinking it? the .547 in a very good estimate to me but is it truly the distance between the 2 cars when the first one crosses the finish line? Brad

05-18-2015, 05:10 PM	#10
Troy Henderson Member Join Date: Jul 2006 Location: Kansas City Posts: 397 Likes: 105 Liked 106 Times in 33 Posts	Re: Need a little Math Help Without doing all the conversions to complicate it.. 1 mph = 17.6 inches/second So: 141.517.6 = 2,490.4 inches/second 2,490(2/10000) = 0.498 inches My guess anyway. __________________ Troy Henderson Henderson Race Shop LLC 816-520-5389 www.hendersonraceshop.com