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Newtons third law question- Action reaction pair

  1. May 24, 2013 #1
    1. The problem statement, all variables and given/known data

    A 2000kg car pushes a 1000kg garbage can at constant speed . The car exerts a force of magnitude CB on the garbage can, and the garbage can exerts a force BC on the car. Which force has greater magnitude, or are they equal? explain

    2. Relevant equations
    Fcb=-Fbc


    3. The attempt at a solution

    Esentially, I drew 2 FBD's and showed one for the car with a force on the right CB ... the second FBD of the garbage can has a force pointing to the left of BC... which is equal and opposite magnitude of CB

    Basically i just explained newtons third law

    Is this correct?
     
  2. jcsd
  3. May 24, 2013 #2

    mfb

    User Avatar
    2016 Award

    Staff: Mentor

    That is right, and it is just Newton's third law, indeed.
     
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