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rebecca9625
rebecca9625
Student

Does a class 1 lever always exert a load force that is greater than an effort force?

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Posted by rebecca9625 on Tuesday November 3, 2009 at 4:33 PM and tagged with class 1, lever, science.

Answers:

  1. krishna-agrawala
    krishna-agrawala Teacher
    Graduate School

    eNotes Editor

    No, a class 1 lever does not always result in load being greater than the effort. In a class lever the fulcrum is situated between the load and the effort. the ratio of load and effort in this type of lever depends on the distances of load and effort from the fulcrum. When the both load and effort are equidistant, them the magnitude of load and effort will be same. When the distance of load is increased, it will become less than effort. And when  distance of effort is increased, it will become less than load. The exact relationship between effort, load, and their distances from fulcrum is given by the following equation.

    Load x Distance of load from fulcrum = Effort x Distance of effort from fulcrum

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    Posted by krishna-agrawala on Tuesday November 3, 2009 at 10:58 PM

  2. dexter-rox
    dexter-rox Student
    High School - 9th Grade

    no, because of all of the forces acting on it such as gravity, and some air resistance.

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    Posted by dexter-rox on Wednesday November 25, 2009 at 6:37 AM