Figure 10-21b is a graph of the angular position of the
Chapter , Problem 4(choose chapter or problem)
Figure 10-21b is a graph of the angular position of the rotating disk of Fig. 1O-21a. Is the angular velocity of the disk positive, negative, or zero at (a) t = 1 s, (b) t = 2 s, and (c) t = 3 s? (d) Is the angular acceleration positive or negative?
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