The Traffic Accident Reconstruction Origin -ARnews-

Re: Truck side scratches on road - COF?

Ken Zwicker (atlanticrash@ns.sympatico.ca)
Sun, 7 Sep 1997 20:03:56 -0400 (EDT)

Some years ago, I had the occassion to to a drag test with a late model Camaro. The Camaro had overturned and slid some distance down the asphalt highway on its roof. The drag test was performed using a large spring scale that was attached to a tow truck. The Camaro was repositioned on its roof at the site of the incident and was dragged along the surface while I took readings form the scale. I followed the same procedure as used with a drag sled. While I don't have the test results immediately at hand, I do recall that the results were about 0.45. The rubber to asphalt f was about 0.75. Hope this helps. Ken Zwicker

Ken Zwicker
atlanticrash@ns.sympatico.ca

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