Question:

How do you measure the work against the force of friction?

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How do you measure the work against the force of friction?

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  1. Wf = Ff*x where x is the movement in the direction of the frictional force.


  2. Work against frictional force

    =(Frictional force on the body) . (displacement)

    Frictional force = Greek mu x perpendicular force on the body

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