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Balancing a hammer

  1. Mar 18, 2009 #1
    this is not a home work question k i know that it is easier to balance a hammer by having your finger touching the handle and the claw part of the hammer away from the earth
    but how can we explain this with the laws of physics i know it has something to do with center of mass and inertia
     
  2. jcsd
  3. Mar 18, 2009 #2

    Astronuc

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    The hammer is subject to its weight, W, which is the force due to its mass and acceleration of gravity m[tex]\vec{g}[/tex].

    In order to achieve zero torque, τ = [tex]\vec{r} x \vec{W}[/tex], |r| must be zero.

    What must be the relationship of the center of mass with the pivot point, for a hammer to be balanced?
     
  4. Mar 18, 2009 #3
    the center of mass is closer to the head of the hammer so it is easier to stabilize
    what do u mean by pivot point. if i think i know what u mean by pivot point
    u want the pivot point farther from the center of mass.
     
    Last edited: Mar 18, 2009
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