[DeTomaso] [Fwd: Re: speaking of wheels falling off---]

Dave Londry davel at emspace.com
Mon Aug 23 17:23:02 EDT 2010



-------- Original Message --------
Subject: 	Re: [DeTomaso] speaking of wheels falling off---
Date: 	Mon, 23 Aug 2010 12:29:13 -0700
From: 	Dave Londry <davel at emspace.com>
To: 	Asa Jay Laughton <asajay at asajay.com>
References: 
<3ed23.465866b8.39a2d143 at aol.com><EED46193149B46CBB8A2770DB6B1267C at artfe836>, 
<AANLkTikcWnUgAOURQT=kRA=yasRS4p-aBgV_gnbwYjsM at mail.gmail.com>, 
<7B25F5CB91744174AED42082E0FDBB44 at LORETTA> 
<SNT116-W217E42A7F480E215E9820995820 at phx.gbl> 
<20100823121137.oxjypqm5w8008gws at webmail.asajay.com>



Yes - if you didn't break it.


Asa Jay Laughton wrote:
> My stirring spoon seems to be stuck in the pot...
>
> So, if a brick wall were traveling at 60 MPH, and you were traveling  
> at 60 MPH and had a head on collision, would -that- be a collision at  
> 120 MPH?
>
>
> Asa Jay
> :)
>
>
> Quoting Julian Kift <julian_kift at hotmail.com>:
>
>   
>> A car is designed to absorb impact in a crash through a 'crush'   
>> zone, what you see in the two car head on are both cars deforming   
>> and disipating the force of the impact equally as they are designed   
>> to do. On the other hand a brick wall is.... well a brick wall and   
>> the single car has to abosrb and disipate all the energy so I would   
>> expect the two scenarios to be very similar in resulting damage.
>>
>> Try propelling two bricks (or rigid objects) at each other at 60 mph  
>>  and see if they react the same as a singel brick propelled at the   
>> wall.....
>>
>> Julian
>>
>>
>>     
>>> From: wkooiman at earthlink.net
>>> To: detomaso at realbig.com
>>> Date: Sun, 22 Aug 2010 20:16:54 -0500
>>> Subject: Re: [DeTomaso] speaking of wheels falling off---
>>>
>>> Slightly off topic, but a head-on collision isn't car1 speed + car2 speed.
>>>
>>> 60mph car head-on with 60mph car isn't like hitting a wall at 120mph. It
>>> was proven very dramatically on myth busters.
>>>
>>> I believe it's more complicated than that. It's has to do with the total
>>> force. Car1 speed * car1 weight + car2 speed * car2 weight = total force.
>>>
>>> Force applied to car1 = total force/car1 weight.
>>> Force applied to car2 = total force/car2 weight.
>>>
>>> It they're both going 60mph and they're both the same weight, it's just like
>>> they both hit a wall going 60mph. (assuming they head dead-on, glancing
>>> blows change everything)
>>>
>>> If car1 is 3,000 lbs and car2 is 30,000 lbs (big rig), car1 is going to be
>>> much worse than head-on, and the 18-wheeler will have much less damage.
>>>
>>> I just made up those formulas, but I bet they're correct or at least close.
>>>
>>> BTW, the wheel that went through the windshield was probably going
>>> effectively 120mph, simply because the windshield wouldn't have slowed the
>>> tire down much at all.
>>>
>>> -----Original Message-----
>>> From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] On
>>> Behalf Of boyd casey
>>> Sent: Sunday, August 22, 2010 7:11 PM
>>> To: Art Stephens
>>> Cc: JDeRyke at aol.com; detomaso at realbig.com
>>> Subject: Re: [DeTomaso] speaking of wheels falling off---
>>>
>>> I have heard of several incidents where wheels came off of vehicles and the
>>> vehicle that lost the wheel did ok but the errant wheel killed the driver of
>>> the car it hit. This has happened more then once in recent memory. The one I
>>> remember more clearly the wheel cam e off a car on an interstate and crossed
>>> the median. As you know the speed in a head on is car +car b + speed of
>>> impact so a car traveling at 60 mph and a loose wheel traveling at 60 mph
>>> and bouncing through the windshield and landing smack in someones lap at 120
>>> mph effective speed, it's not a pretty picture!. When I was in college
>>> (Loyola in New Orleans) I was driving a VW "Super Bug" from my fathers Ford
>>> dealerships used car lot when I noticed a VW wheel Passing me on the left!
>>> The left rear wheel came off and the next thing I knew I was sliding to a
>>> stop and the wheel was making great time on it's own! Luckily it didn't hit
>>> anyone. I was always having problems with the cars that I was given to drive
>>> from the cheapest used car inventory. And every time I had a problem I got
>>> downgraded to an even cheaper car until finally I was relegated to the
>>> status of pedestrian!
>>> Boyd
>>>
>>> On Sun, Aug 22, 2010 at 6:43 PM, Art Stephens
>>> <artstephens at verizon.net>wrote:
>>>
>>>       
>>>> When I crashed my car, one of the rear wheels with broken upright, half
>>>> shaft and disc brake assembly attached, was found days later in a gully
>>>> about a quarter mile past the car!
>>>>
>>>>
>>>>
>>>>
>>>> ----- Original Message -----
>>>> From: <JDeRyke at aol.com>
>>>> To: <detomaso at realbig.com>
>>>> Sent: Sunday, August 22, 2010 12:15 PM
>>>> Subject: Re: [DeTomaso] speaking of wheels falling off---
>>>>
>>>>
>>>>         
>>>>> I've also had a 'memorable' experience with OTHER PEOPLE'S wheels
>>>>>           
>>> falling
>>>       
>>>>> off. Commuting to work one morning in N CA in my modified Corvair, a
>>>>> cement
>>>>> pumper truck on its way to a job site broke a rear axle flange off,
>>>>> freeing a
>>>>> gigantic 'flotation' tire, wheel & brake drum at 50 mph on the freeway.
>>>>>           
>>>> He
>>>>         
>>>>> was some ways behind me and I saw the accident in my mirrors, but as
>>>>>           
>>> race
>>>       
>>>>> announcers say, in heavy traffic 'I had nowhere to go' except to lean
>>>>> away.
>>>>> The 250-lb assembly bounced off guard rails and hit my drivers door a
>>>>> glancing
>>>>> blow that knocked the 2500-lb car sideways half a lane, in spite of the
>>>>> traction from the same size tires I run on the Pantera. The wheel
>>>>>           
>>> finally
>>>       
>>>>> stopped in the median-strip Oleander bushes. Lucky me- I was the only
>>>>>           
>>> car
>>>       
>>>>> it hit!
>>>>> The dent in my car was a foot deep but luckily was confined only to the
>>>>> door.
>>>>> A gigantic traffic jam occurred between my banged up car and the
>>>>>           
>>> concrete
>>>       
>>>>> truck tipped at an angle across 2 lanes. Once he saw I wasn't hurt or
>>>>> angry,
>>>>> the truck driver (also the business owner!) was very apologetic but was
>>>>> MUCH
>>>>> more worried about the full load of concrete he was to have processed,
>>>>> rapidly setting up behind us in a second truck (pre-cell phone days). 2
>>>>> hrs
>>>>> later I drove the beat up car into work and got no crap about being
>>>>>           
>>> late.
>>>       
>>>>> His
>>>>> business insurance bought me a new door and a full paint job. FWIW- J
>>>>> DeRyke
>>>>> _______________________________________________
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>>>>
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>
>
>
>   

-- 
Dave Londry
Embedded Spaces Inc. (ESI)
davel at emspace.com

604 589 9183 phone/fax
6O4 72l 2278 cell
Skype:embeddedspaces




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