Q:

Many of the muscle-bone combinations in the body behave as third-class levers. Why do these require a muscle tension (the effort force) much greater than the load’s force?

waelhammad
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2022-10-22
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Many of the muscle-bone combinations in the body behave as third-class levers. Why do these require a muscle tension (the effort force) much greater than the load’s force?

  1. Because the effort force is applied further from fulcrum than is the load force
  2. Because the effort force is applied closer to the fulcrum than is the load force
  3. Because the fulcrum lies between the load and the effort
  4. Because the fulcrum is further from the effort force than is the load force
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waelhammad
2022-10-22
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B: The closer is the effort to the fulcrum, the greater is the effort it must exert to shift the load.

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