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Homework Help: Moments question please help!

  1. May 31, 2005 #1
  2. jcsd
  3. May 31, 2005 #2


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  4. Jun 1, 2005 #3
  5. Jun 1, 2005 #4
    Do you know the answer to (i)? If so, try drawing a free body diagram for situation (i), and one for situation (ii), you'll notice something about the net force and torque in each case.
  6. Jun 1, 2005 #5
    not really
  7. Jun 1, 2005 #6
    When is force Q = 0?
    Why does it decrease as he walks away?
  8. Jun 1, 2005 #7
    i dont know. i just dont get moments.
  9. Jun 1, 2005 #8
    Maybe you should read up on it a little. The hints they give you are pretty helpful.

    Think about calculating torque around a point that will yield a simple equation and then use a couple of those equations to get an expression for Q.
    Last edited: Jun 1, 2005
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