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Truck on a banked curve

  1. Sep 26, 2007 #1
    1. The problem statement, all variables and given/known data
    A truck is travelling around a 3 degree banked turn at a given constant speed with a given radius of curvature. The weight and center of gravity of the truck are also given. The question asks to determine at which speed the truck will tip over.

    2. Relevant equations

    3. The attempt at a solution

    I'm unsure what the condition is for tipping. At first I figured that if the truck tips towards the outside, tipping will just begin when the reaction forces on the inner wheels are zero. I then set the set the moment of the weight equal to the moment of the centripedal acceleration times mass about the outside set of wheels. The answer I got differed from that given in the texbook.

    I'm unsure how else to solve this problem since I am unable to find the normal and friction forces and so I am asking for some help. Thank you.
  2. jcsd
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