TEST YOUR UNDERSTANDING OF SECTION 2.2 Figure 2.9 is an x-t graph of the motion of a particle. (a) Rank the values of the particle’s x-velocity vx at points P, Q, R, and S from most positive to most negative. (b) At which points is vx positive? (c) At which points is vx negative? (d) At which points is vx zero? (e) Rank the values of the particle’s speed at points P, Q, R, and S from fastest to slowest.
2.9 An x-t graph for a particle.
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