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sarahbantilan
sarahbantilan sarahbantilan
  • 27-05-2014
  • Physics
Answered

When parts of your body functions as lever systems, what part supplies the force?

Verified Answer :

AL2006
AL2006 AL2006
  • 27-05-2014

Muscles supply the force.  They exert force by getting shorter (contracting).
A muscle can't get longer by itself.  There needs to be another muscle
pulling in the opposite direction.

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