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The vector nature of forces hw ?

  1. Oct 19, 2008 #1
    I have been having trouble with this problem and don't understand why.

    A shopper pushes a 7.5 kg shopping cart up at a 13 degree incline, find the magnitude of the horizontal force, needed to give the cart an acceleration of 1.41m/s2

    The answer is supposed to be 28 N and I don't know how to get their
     
  2. jcsd
  3. Oct 19, 2008 #2

    Hootenanny

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    Welcome to Physics Forums.

    What have you tried thus far?
     
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