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    Suz1245's Avatar
    Suz1245 Posts: 1, Reputation: 1
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    #1

    May 14, 2009, 11:00 AM
    Need formula for speed without having time component
    Hello>
    Can someone help me with this?

    A vehicle travelling skidding 81ft to point of impact. How do you determine how fast the vehicle was going?
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #2

    May 14, 2009, 11:22 AM

    Well, I don't see any ways of solving this. Did you miss any information, such as the force of impact, the frictional force..
    Perito's Avatar
    Perito Posts: 3,139, Reputation: 150
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    #3

    May 14, 2009, 11:31 AM
    A vehicle travelling skidding 81ft to point of impact. How do you determine how fast the vehicle was going?
    You need the coefficient of friction between the tires and the road if you wish to calculate it. There are lots of sites that have approximations if you wish to look at them (they estimate 37-44 mph on dry blacktop)

    speed estimates, skid marks, speedchart
    Skid Marks
    Accident reconstruction speed calculator

    Google more sites.
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