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How far does the bus travel?

  1. Feb 15, 2004 #1
    there is this problem that i really need help on

    <b>a bus accelerates at 1.5m/s(squared) from rest for 12s. Itthen travels at constant velocity for 25s, after wich it slows to a stop with an acceleration of -1.5m/s(squared).
    (a) How far does the bus travel?
    (b) What is its average velocity?
  2. jcsd
  3. Feb 16, 2004 #2
    i won't give it away completely, but you'll be needing these equations [not in that particular order]

    d = v\t

    a = (v' - v) / t

    d = [(v' - v)/2]t

    v'^2 = v^2 + 2ad

    isolation and substition will be involved :)
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