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This text is meant to accompany class discussions. It is not everything there is to know about dimensional analysis. It is meant as a  prep for class.
Click for the questions that go with this reading
 
Finding the instantaneous velocity from a position vs time graph
The "instantaneous velocity" is the exact velocity at a single moment in time. Maybe you have been traveling in the back seat of a car and asked the driver, "How fast are we going?" The driver responded, "Exactly 68 mph." The driver was telling you the instantoeus velocity of the car at that moment in time.

 

This video can be found on YouTube at https://youtu.be/NouXvA1zBHE

 
How would you find the instaneous velocity if the graph was not a straight line?

This video can be found on YouTube at https://youtu.be/gD1uaS96eQE

 
Example 3

This video can be found on YouTube at https://youtu.be/YGFDDKuRtEM
Example 4
What is the velocity at 6 seconds?

 

Content 3

by Tony Wayne ...(If you are a teacher, please feel free to use these resources in your teaching.)

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