1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Tow truck dragging Tractor

  1. Mar 25, 2007 #1
    1. The problem statement, all variables and given/known data
    The coefficient of limiting static friction of a rubber tire in wet concrete is 0.70. What mass of tractor, with its brakes locked, can be dragged by a tow truck that can exert a horizontal force of 1.0 * 10^4 N?


    2. Relevant equations
    Fnetx = ma

    Ff = us*Fn

    Fn = m*g

    3. The attempt at a solution
    10000 / (0.70*9.8) = 1457.72


    Is that right??..........Help NEEDED:confused:
     
  2. jcsd
  3. Mar 25, 2007 #2
    What you calculated is the maximum mass of a tractor that can be moved, starting from rest on a horizontal surface, by a tow truck. Because the coeff. of kinetic friction is less than that of static friction, a more massive tractor could be pulled if it started with a nonzero speed. NOTE: I am just nitpicking the question, your solution seems fine to me.
     
  4. Mar 25, 2007 #3
    oo so thaz rite??
     
  5. Mar 25, 2007 #4
    yes, good.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Tow truck dragging Tractor
  1. Tractor on an incline (Replies: 1)

  2. Ski tow (Replies: 36)

Loading...