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Old 20th Jan 2019, 11:36
  #92 (permalink)  

Avoid imitations
Join Date: Nov 2000
Location: Wandering the FIR and cyberspace often at highly unsociable times
Posts: 11,978
A good few years ago I attended a formal dinner and sat next to a policeman who told me that he was the qualified traffic investigator for the local county police force. The subject of a recent fatal accident involving a motorcycle came up (I was aware of who it involved - a local rider was killed) and the conversation got quite technical. I asked the policeman how he accounted for the deceleration of a motorcycle which had fallen over and was skidding on plastic and metal, rather than being braked on it's wheels, due to the differences in friction coefficients. It seemed obvious to me that the deceleration rate would be far less than the normal tyre rubber on road. The answer I got was that this wasn't taken into account. I commented that this would surely make it appear that the motorcycle had been traveling faster than it actually had been. He looked a bit blank but didn't answer.
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