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Homework Help: Please help. Simple motion probelm

  1. Feb 28, 2010 #1
    1. The problem statement, all variables and given/known data

    Calculate the average velocity for a remote controlled vehicle that starts with a speed of 1.0 m/s [forward] and then accelerates at 0.08 m/s2 [backward] for 4.0 s


    2. Relevant equations

    Vavg=deltaD/deltaT

    3. The attempt at a solution

    I'm unsure of how to go about this even though it seems its an easy question. Is there enough information to even solve it? Wouldn't i need the amount of time that it travels forward? Thanks for any help
     
  2. jcsd
  3. Feb 28, 2010 #2
    The equation you listed isn't all you need. What other motion equations do you know that might help you find delta d?
     
  4. Apr 18, 2012 #3
    Delta d=(V2^2-V1^2)/2a?

    Not sure if I am doing this right but
    Delta d=(1.0^2-0.0^2)/2(0.8)
    = 0.625m

    I need some help is this correct?
     
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