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Car on a banked curve

  1. Mar 22, 2009 #1
    1. The problem statement, all variables and given/known data
    car is on a banked curve of angle 18o, radius 70m. Mass of car = 1020kg and weight is taken as 1.0x10^4 N. Find the resultant force and the normal force N when the car is at the design speed.


    2. Relevant equations
    force diagram equations


    3. The attempt at a solution

    I calculated Normal force to be 10514.6N
    I calculated the resultant force to be the component of the normal force towards the centre of the banked curve, and got 3249.2N

    I think design speed just means max speed the car can safely travel around the curve at, I calculated this to be approx. 14.9 m/s but i could be quite wrong.

    Are there things i'm forgetting to consider? is this exactly what the question asks for?
     
  2. jcsd
  3. Mar 22, 2009 #2
    I checked your answers and everything, and from what I know, you are completely correct.

    By the way, as advice, if you have not already done it in other examples it is good show working on the site, and if possible a vector diagram.
     
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