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Homework Help: Acceleration and radius of curvature

  1. Aug 25, 2010 #1
    1. The problem statement, all variables and given/known data
    A particle moves along a curvilinear trajectory shown in Fig. When passing through the point O has a 3.6m/sec speed and slows down so that it passes through point A does so with a speed of 1.8m/sec. The distance from point A to point O measured along the path is 5.4meters and the acceleration is proportional to the distance of the particle to point O. Determine the radius of curvature of the path in A if we know that the total acceleration the particle when pass through this point is [tex]\displaystyle\frac{3m}{sec^2}[/tex].


    I really don't know where to start. I'm not familiar with the radius of curvature. Any help will be thanked.
  2. jcsd
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