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Homework Help: Finding the force of friction

  1. Oct 18, 2005 #1
    This is probably horribly easy, but it's almost 1 AM so I'm going nutty trying to figure this one out.

    The questoni: "A 2000kg car is traveling at a constant 30m/s with the motor producing a force of 4000 N forward. Find the force of friction."

    I drew the diagram. Is acceleration 0?

    I'd appreciate any help. Thank you~
  2. jcsd
  3. Oct 19, 2005 #2
    There is a force forward of 4000N that is being completely negated by friction, since it is moving at constant velocity.. If the net force is 0, what is the force of friction?
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