What type of force does a backpack exert on the…

Discussion in 'Health' started by Simplex, Feb 14, 2019.

  1. Simplex

    Simplex New Member

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    What type of force does a backpack exert on the body’s back and hips?
     
  2. Yacine

    Yacine New Member

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    It depends on what you have in it.
     

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