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Homework Help: Average resultant force

  1. Apr 27, 2009 #1
    1. The problem statement, all variables and given/known data
    a 3000 kg truck traveling at a speed of 4.0 m/s makes a 90 degree turn in a time of 5.0 s and emerges from this turn with a speed of 7.0 m/s. what is the magnitude of the average resultant force on the truck during this turn?

    2. Relevant equations

    3. The attempt at a solution
    I think this might be a centripetal force problem but the change in velocities is messing me up.
  2. jcsd
  3. Apr 27, 2009 #2


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    Homework Helper

    What is force? F = m*a

    What is acceleration? ΔV/Δt

    So ... what is the ΔV ... keeping in mind that V is a vector?

    You have the Δt conveniently given as 5 sec.
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