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Rubbing the tire on the road, is it really mathematically simple?



 
 
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  #21  
Old May 28th 19, 03:17 AM posted to rec.autos.tech
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Posts: 128
Default Rubbing the tire on the road, is it really mathematically simple?

On Monday, May 27, 2019 at 3:01:23 PM UTC-5, micky wrote:
> In sci.math, on Sun, 12 May 2019 01:26:41 +0200, Thomas 'PointedEars'
> Lahn > wrote:
>
> >Paul in Houston TX amok-crossposted:
> >^^^^^^^^^^^^^^^^^^
> >Please post here using your real name, “Paul in Houston TX” #74656.
> >
> >> I would think that total tire wear would be the same but wear per unit
> >> area would be different.

>
> Hmm. That sounds right.
>
> >What is the basis for your assumption?

>
> "Total tire wear would be the same". That's because of the law of
> conservation of tire wear. Or, iow, one does't get something for
> nothing so the wear would have to be the same. Or greater, but I don't
> see why it would be greater.
>
> When the car is not moving, all the wear would be in one place, but
> surely when it's moving, the wear would be spread around the
> circumference of the tire.
>
> >F’up2 sci.physics

>
>
> I put back the other two groups. Otherwise I, and everyone else, has to
> read all three newsgroups to see all the answers.


When a new set of tires get a few years old, they also get harder. They will sound like a bad rear end bearing. I had a new set of Kumho tires on my old van, they started making a bad bearing noise after a few years. Those tires don't get much traction on wet streets either. I bought some new Cooper tires and that noise stopped.
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  #22  
Old May 29th 19, 07:08 PM posted to rec.autos.tech
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Posts: 128
Default Rubbing the tire on the road, is it really mathematically simple?

On Monday, May 27, 2019 at 9:17:31 PM UTC-5, wrote:
> On Monday, May 27, 2019 at 3:01:23 PM UTC-5, micky wrote:
> > In sci.math, on Sun, 12 May 2019 01:26:41 +0200, Thomas 'PointedEars'
> > Lahn > wrote:
> >
> > >Paul in Houston TX amok-crossposted:
> > >^^^^^^^^^^^^^^^^^^
> > >Please post here using your real name, “Paul in Houston TX” #74656.
> > >
> > >> I would think that total tire wear would be the same but wear per unit
> > >> area would be different.

> >
> > Hmm. That sounds right.
> >
> > >What is the basis for your assumption?

> >
> > "Total tire wear would be the same". That's because of the law of
> > conservation of tire wear. Or, iow, one does't get something for
> > nothing so the wear would have to be the same. Or greater, but I don't
> > see why it would be greater.
> >
> > When the car is not moving, all the wear would be in one place, but
> > surely when it's moving, the wear would be spread around the
> > circumference of the tire.
> >
> > >F’up2 sci.physics

> >
> >
> > I put back the other two groups. Otherwise I, and everyone else, has to
> > read all three newsgroups to see all the answers.

>
> When a new set of tires get a few years old, they also get harder. They will sound like a bad rear end bearing. I had a new set of Kumho tires on my old van, they started making a bad bearing noise after a few years. Those tires don't get much traction on wet streets either. I bought some new Cooper tires and that noise stopped.


The tire that never goes flat. http://www.popularmechanics.com/cars...920/tweel-tire
 




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