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Velocity changes

  1. Sep 22, 2004 #1
    What if an object is changing from -m4/s to -1m/s. Is the velocity becoming more positive or less positive? Is there acceleration in this?

    What if an object is turning around so that it undergoes a change in velocity from 2m/s to -2m/s? Is the velocity becoming more positive or less positive? Is there acceleration while the object is turning?
     
  2. jcsd
  3. Sep 22, 2004 #2

    Doc Al

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    Staff: Mentor

    I assume you mean -4 m/s to - 1 m/s. Well, you figure it out. Draw a number line from -10 to +10 and mark off where -4 and -1 is. When you move from one to the other, which direction do you move, positive or negative.
    If the velocity changes, there's acceleration.

    Figure this one out the same way.
     
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