cq_1_001

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Phy 201

Your 'cq_1_00.1' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.

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Which object did you choose and what were the three positions and the three clock times?

answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):

The roll of tape at: 7 inches, 40.687

11 inches, 40.906

All the way down the ramp, 41.343

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In the following you don't have to actually do calculations with your actual data. Simply explain how you would use data of this nature if you had a series of several position vs. clock time observations:

• If you did use observations of positions and clock times from this video, how accurately do you think you could determine the positions, and how accurately do you think you would know the clock times? Give a reasonable numerical answer to this question (e.g., positions within 1 meter, within 2 centimeters, within 3 inches, etc; clock times within 3 seconds, or within .002 seconds, or within .4 seconds, etc.). You should include an explanations of the basis for your estimate: Why did you make the estimate you did?

answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):

The video is blurry so it is hard to determine the actual distance the roll of tape went, but around an inch error sounds reasonable, the clock seems incredibly accurate so within .001 second of an error.

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• How can you use observations of position and clock time to determine whether the tape rolling along an incline is speeding up or slowing down?

answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):

You can divide the distance by the time it took to reach that distance, at different intervals, and determine the rate at which the tape is speeding up or slowing down.

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• How can you use observations of position and clock time to determine whether the swinging pendulum is speeding up or slowing down?

answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):

Divide the distance the pendulum travels by the given time at certain intervals and compare the average speeds to see if the pendulum is speeding up or slowing down.

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10 minutes

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