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S3.1.54 Here is a new formula for you. Percent Error is the moment of truth. It tells you how close you are to the accepted values. In this case, the accepted value for acceleration due to earth’s gravity. To two sigs it is 9.8 m/s/s. Our value (when all times from all classes are averaged) is 9.9 m/s/s. That is a ONE PERCENT ERROR. That is the closest that we have come in 30 years. A little luck? maybe. A lot of skill? . . CERTAINLY!

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