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Balance point distance

  1. Jun 11, 2013 #1
    Hi All

    Ive been racking my brains and i just can't remember how to calculate a 'seesaw' type balance point!?

    Please see the attachment - It am trying to work out what 'C' is (I know A, B & D)

    Thanks very much
     

    Attached Files:

  2. jcsd
  3. Jun 11, 2013 #2

    vk6kro

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    Science Advisor

    You need to know the distances from below the centre of mass of each of the weights on the beam to the pivot point.

    Call these E (on the left) and F (on the right).

    Then A * E = B * F if the beam is balanced and weightless.
     
  4. Jun 11, 2013 #3
    sorry i mean this

    Hi

    Sorry for the confusion - please see my new attachment with a more accurate diagram.

    Basically i am trying to position a handle in the center of a product so when it is lifted it will be balanced.

    Again im after 'C'

    thanks very much
     

    Attached Files:

  5. Jun 11, 2013 #4

    vk6kro

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    Science Advisor

    No, you have to know where the weights act on the beam.

    This is below the center of mass of each weight and not at the end of the beam.
     
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