Re: [Phys-l] stopping distance

[Scott Goelzer <s.goelzer@comcast.net>]

Air brakes still use drums and pads; no difference from cars really  
besides what causes the pad to contact the drum - fluid or air.
<http://www.lowestpricetrafficschool.com/handbooks/cdl/en/5/1>

seems like asbestos brake linings were phased out of USA in the 80's
<http://www.vectormachining.com/casestudy.html>

best I can tell if you want genuine asbestos linings you must order  
from India.


Scott





*******************************************
Scott Goelzer
Physics Teacher
Coe-Brown Northwood Academy
Northwood NH 03261
sgoelzer@coebrownacademy.com
*******************************************


On Jan 5, 2007, at 2:58 PM, Herb Gottlieb wrote:

> On Fri, 05 Jan 2007 14:02:44 -0500 "David Strasburger-fac"
> <David_Strasburger-fac@nobles.edu> writes:
> > "Anthony Lapinski" <Anthony_Lapinski@pds.org> on Friday, January 5,
> > 2007  at 12:00 PM -0500 wrote:
> > I've also heard that large trucks have a unique braking system.
> > Can anyone elaborate ?
>
>
> Many trucks use air brakes rather than asbestos-coated brake drums  
> which
> pollute the environment.
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