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Homework Help: Deceleratation plus reaction time problem

  1. Jun 11, 2005 #1
    hard problem, a car traveling 95.0 km/hr needs to decelerate at 4.2m/sec/sec. reaction time of driver is 1.2 sec. what is original speed of driver in m/sec, total distance in m. needed to stop.

    so the reaction distance + deceration distance what they're looking for

    use this formula x1 = xo + vocost = ?

    any thoughts
  2. jcsd
  3. Jun 11, 2005 #2


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    bigman, read the rules for posting here. See your other thread.
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