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Homework Help: Acceleration of Forces at Angles

  1. Oct 12, 2009 #1
    A clerk moves a box of cans down an aisle by
    pulling on a strap attached to the box. The
    clerk pulls with a force of 176.0 N at an angle
    of 30.0◦ with the horizontal. The box has a
    mass of 40.0 kg, and the coefficient of kinetic
    friction between the box and floor is 0.520.
    The acceleration of gravity is 9.81 m/s2 .
    What is the acceleration of the box?
    Answer in units of m/s2.

    Okay, this should be a simple problem, but I don't understand what it means when it says 'with the horizontal' and how that would look on my FBD. Help me please?
  2. jcsd
  3. Oct 12, 2009 #2


    User Avatar
    Homework Helper

    "with the horizontal" should be "to the horizontal"--that is, she pulls at an angle that's 30 degrees above the horizontal.
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