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Homework Help: Force and Magnitude

  1. Apr 22, 2013 #1
    1. A person is pulling a heavy cart up a hill. The cart has 400 kg of mass inside it. The person is pulling the cart with 10 N of force. What is the magnitude of the force on the person due to the cart?


    3. Is it 4000N?
     
  2. jcsd
  3. Apr 22, 2013 #2

    CWatters

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    What does Newtons third law say about people exerting a force on a cart?
     
  4. Apr 22, 2013 #3
    For every action there is an equal and opposite reaction.
     
  5. Apr 22, 2013 #4

    CWatters

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    Correct.

    The question states that the person exerts a force of 10N on the cart so apply Newtons third law to work out how much force the cart exerts on the person.
     
  6. May 1, 2013 #5
    Thanks!!
     
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