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Velocity versus Time graph help?

  1. Sep 13, 2014 #1
    My physics lab is using a Motion Detector, to measure the time it takes for a high frequency pulse to travel from the detector to an object and back.

    I have several questions about Velocity vs Time:

    What does a horizontal line (with 0 velocity) mean? Does that mean to walk backwards, walk forwards, run, etc?

    What does a horizontal line (with 0.5 velocity) mean? Does that mean to walk backwards, walk forwards, run, etc?

    What does a horizontal line (with -0.5 velocity) mean? Does that mean to walk backwards, walk forwards, run, etc?

    What does a vertical line pointing straight up mean? Quickly run backwards right?

    What does a vertical line pointing straight down mean? Quickly run forward right?
     
  2. jcsd
  3. Sep 13, 2014 #2

    mfb

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    2016 Award

    Staff: Mentor

    0 velocity means no motion.
    What positive and negative means depends on your setup.

    It is a velocity versus time plot. So which quantity makes a fast change? How is that usually called?
     
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