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# Report3 - Name TA Section Date David Calderon Jie Zhang TH...

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Name: David Calderon TA: Jie Zhang Section: TH 7:35-9:25 Date: 02/27/09 MEASUREMENTS OF A TABLE Abstract: Free fall measurements of the gravitational acceleration g on Earth is 9.81 m/w 2 . This can be confirmed using the free fall equation derived from Newton's second law of motion: y=1/2 gt 2 .

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I OBJECTIVE Measure the value of the g on Earth by analyzing times from a free falling object. II PROCEDURE Using a small rubber ball, a whiffle ball, a stopwatch, and a 30-m measuring tape, a rubber ball was dropped from a stair well. Care was taken to drop the ball with as little interference as possible. The height, y , and time, t , that it takes for the rubber ball to hit the floor were recorded. This was repeated ten times and also done with the whiffle ball instead of the rubber ball to ensure reasonable values along with errors. These recorded times were plotted in Graphical Analysis. Using the statistics tool button, the basic calculations of min/max values, standard deviation, and mean
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## This note was uploaded on 09/09/2009 for the course PHY 113 taught by Professor Cavatto during the Spring '08 term at ASU.

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Report3 - Name TA Section Date David Calderon Jie Zhang TH...

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