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Homework Help: Finding Magnitude of Acceleration using the force

  1. Jul 13, 2010 #1
    1. The problem statement, all variables and given/known data
    Car 1: 2000 kg
    Car 2: 3000 kg
    coefficient of friction: 1.5
    angle of movement: 40 degrees North of East
    displacement of vehicles: 6.0 m

    What was the friction force that acted upon the locked sliding cars to stop them?

    What was the magnitude of the acceleration that this force produced on the sliding cards sliding together?

    2. Relevant equations

    Ff = coe of fric x mass x 9.81

    3. The attempt at a solution

    so to figure out the friction force I did:
    (1.5)(2000 + 3000)(9.81) = 73575 N

    but I don't know how to figure out the magnitude of acceleration!
    would the formula be this? coe of fric x 9.81 ???

    If that isnt the formula can someone please help me???
  2. jcsd
  3. Jul 13, 2010 #2


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    Staff Emeritus
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    Use Newton's second law.
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