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How is friction related to work done

  1. Oct 23, 2005 #1
    kownig that work = f X d
    if tehres friction acting as well, for example 1500 N opposing a cart moving up along a path 800M long, the cart is 120Kg.
    normally work would be = 120(9.8) X 800 right
    but here it'll be more cause we have to add the work needed to overcome friction ofcoruse
    so where does the 1500N go, so we can find total work
     
  2. jcsd
  3. Oct 23, 2005 #2

    Andrew Mason

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    You have to find the total force on the cart as it moves along the path. That force consists of the weight of the cart plus friction. If the path is vertical and the friction is 1500 N, you can work out the total force on the cart. The work done in overcoming friction ultimately produces heat.

    AM
     
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