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Homework Help: What is the magnitude of force of friction of the snow

  1. Oct 15, 2007 #1
    seld pulled at a constant velocity acroos a horizontal snow surface, if force 80 apploed to the sled rope at an angle of 53 to the ground,
    what is the magnitude of force of friction of the snow???
    i don't know how to solve it
    i have test 2morrow
    i need some explanition plez
     
  2. jcsd
  3. Oct 16, 2007 #2

    Chi Meson

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    Homework Helper

    First, please stop writing in "texting" shorthand. It's not Youtube here.

    And get used to the other rules: we are not here to answer your homework questions for you. You must show some of your effort before we help you.


    Do you have a textbook? Read a bit about components of vectors, and coefficient of friction, and normal force.
     
  4. Oct 16, 2007 #3
    i read the whole chapter and i still don't get it
    i know the compnents of vector
    first step i think
    to get normal force::
    80(cos53)
    and you get
    48 N
    and i'm stuck!!
    i know that i have to find the coffecient of the friction
    so i can get Ff
    that's not a homework, i'm studying for a test
    thanks
     
  5. Oct 16, 2007 #4

    Chi Meson

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    This is not on a slope. You don't need the normal force here, actually. You need to know a few other things.

    What's the net force on this object if it is pulled at a constant velocity?
     
  6. Oct 16, 2007 #5
    isn't 0..
     
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