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Homework Help: Ball rolling down an inclined plane

  1. Mar 8, 2008 #1
    I have this math problem for school that I need help with

    A ball is rolling down an inclined plane. The equation I have is y = .165x^2 + .997x + .845 where y is the distance travelled and x is the time taken

    I want to predict the distance it has rolled in 2 days, which I can do

    but what sort of assumptions would i have to make?

    and what are the strengths and limitations for the model?
    for example, a limitation is that when it reaches terminal velocity the model won't work anymore because the model expects the speed to keep increasing

    i dont know anything about physics so i need help
  2. jcsd
  3. Mar 8, 2008 #2
    Here's what I believe you need:

    That equation is if the ball rolls at a constant acceleration. You need assume that it would have constant acceleration, so what would prevent the ball from from going at a constant acceleration?

    Not sure about the limitations, though.
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