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Homework Help: Average velocity

  1. Jun 30, 2010 #1
    1 A truck travels along a staright road at 80 m/s and it travels at 40 m/s for the next 1200m. what is the average velocity?

    2. ave V= change d/ time
    r=dt (get the total time)

    3. (1600-1200)/ 50
    this is incorrect

    I also tried ave V= (u+v)/t and it did not work
  2. jcsd
  3. Jun 30, 2010 #2


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    Gold Member

    Is that all of the information you have been given? Were you not told how long the truck is moving at 80 m/s for?
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