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Homework Help: Stress on a Cane

  1. Nov 18, 2008 #1

    uno

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    1. A man leans down on a cane with a vertical axial force of 98 N. The narrowest part of the cane has a cross-sectional area of 4.0 cm2. What is the maximum compressive stress in the cane in MPa



    2. Stress = F/A



    3. I first changed 4.0cm^2 to .04m^2. I then took 98N/.04m^2 = 2450 Pa which equals .00245 MPa, but the answer is incorrect. Please let me know what I am missing. Thanks.
     
  2. jcsd
  3. Nov 18, 2008 #2
    To convert cm2 to m2, try it this way:

    1 cm2 = (1/100m)2=0.0001 m2
     
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