2CHAPTER OUTLINE2.1 Position, Velocity, and Speed2.2Instantaneous Velocity andSpeed2.3Acceleration2.4Motion Diagrams2.5One-Dimensional Motionwith Constant Acceleration2.6Freely Falling Objects2.7Kinematic Equations Derived from CalculusMotion in One DimensionANSWERS TO QUESTIONSQ2.1If I count 5.0 s between lightning and thunder, the sound hastraveled 3315 01 7msskmbgaf..=. The transit time for the lightis smaller by3 00103319 061085..×=×m sm stimes,so it is negligible in comparison.Q2.2Yes. Yes, if the particle winds up in the +xregion at the end.Q2.3Zero.Q2.4Yes. Yes.Q2.5No. Consider a sprinter running a straight-line race. His average velocity would simply be thelength of the race divided by the time it took for him to complete the race. If he stops along the wayto tie his shoe, then his instantaneous velocity at that point would be zero.Q2.6We assume the object moves along a straight line. If its average
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