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.