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Angular Velocity vs time Graph

  1. Nov 11, 2009 #1
    1. The problem statement, all variables and given/known data
    Figure 10-22 is a graph of the angular velocity versus time for the rotating disk of Fig. 10-21a.

    For a point on the disk rim, rank the instants a, b, c, and d according to the magnitude of the radial acceleration, greatest first (use only the symbols > or =, for example b=d>a>c).

    2. Relevant equations
    [tex]\alpha[/tex] = d[tex]\omega[/tex]/dt

    3. The attempt at a solution
    I figured that the angular acceleration is just the slope of the angular velocity graph, so the magnitudes from greatest to least would be c>a>b=d.

    What did I do wrong? The site says that I am wrong.

    Attached Files:

  2. jcsd
  3. Nov 11, 2009 #2


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    Hi keemosabi! :smile:

    Read the question!! :rolleyes:
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