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Train coming to complete stop

  1. Oct 20, 2009 #1
    A high speed train traveling at 84 kph locks its wheels and skids 84 meters before coming to a complete stop. If the rate of slowing down is constant, how many seconds will it take for the train to come to a complete stop?
     
  2. jcsd
  3. Oct 20, 2009 #2

    rl.bhat

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    Show your attempts.
    State the relevant kinematic equations.
     
  4. Oct 20, 2009 #3
    i tried converting kph to mps and then seeing how many seconds but the answer was wrong
     
  5. Oct 20, 2009 #4

    rl.bhat

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    Show your calculations.
     
  6. Oct 20, 2009 #5
    84 kph = 23.333333 mps

    84m/23.33333 mps = 3.6s
     
  7. Oct 20, 2009 #6

    rl.bhat

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    Write down the kinematic equations.
     
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