Figure 10-20 shows plots of angular position B versus time
Chapter , Problem 2(choose chapter or problem)
Figure 10-20 shows plots of angular position B versus time t for three cases in which a disk is rotated like a merry-go-round. In each case, the rotation direction changes at a certain angular position Beilange' (a) For each case, determine whether 8 Behange is clockwise or counterclock- _9001----'----'----) -, wise from B = 0, or whether it is at B = O. For each case, determine Fig. 10-20 Question 2. (b) whether OJ is zero before, after, or at t = 0 and (c) whether a' is positive, negative, or zero.
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