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Can lever class change?

  1. Oct 21, 2011 #1
    Is it possible for a lever to change from one class to another during its rotation (e.g. it starts out as a third class lever and ends as a first class lever)?
  2. jcsd
  3. Oct 22, 2011 #2


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    Yes. All that is required is for the load, the fulcrum, or the force to change position. For example, if the load were to climb along the lever arm of a class 1 until it passed the fulcrum, the rig would then become a class 2. In the same manner, the leverage ratio can change at any time.
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