Hey everyone -
In class, you took data for a toy car. Come to class with a graph of distance (y-axis) vs. time (x-axis). Make sure to get the slope of the graph.
If at all possible, use a computer graphing program - Logger Pro is my preferred program (and you'll need to download it, using the recently sent link). Others will work, as long as you remember to generate a line and slope.
Also, calculate the "instantaneous" speed through the photogate: width of index card divided by average time.
Look at your two values (photogate method vs. ticker tape slope) - which do you trust more? How close are they? Be prepared to discuss this in class.
Thanks!
sean
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