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This 1 page Class Notes was uploaded by Mason Notetaker on Tuesday March 8, 2016. The Class Notes belongs to history 1020 at Auburn University taught by Michael B. Smith in Spring 2016. Since its upload, it has received 7 views.
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Date Created: 03/08/16
Discussion Our prediction of the cart’s weight was indefinitely supported by the data. We predicted that the cart was 899.2 grams, the original weight of the cart was 828.8 grams which was only an 8.49% difference. Finding the static friction as well as the kinetic friction showed us that Dynamic tension is always less than static friction. This is due to the fact that in the dynamic tension formula the denominator is always greater than the numerator. Knowing this allowed us to check ourselves throughout the lab to verify that we were on the right track. The lab ran fairly smoothly, as there were only a few errors that we ran into as a group that could have resulted in even better results. One of our errors was when we noticed the string going vertically from the pulley to weight slightly came in contact with the table. This caused drag, and made the photogate think the cart was going slower, in turn giving us data that ended up telling our group that the cart was heavier than it really was. Another error when releasing the cart, the cord attached to the cart would drag against the table causing the same problem identified in the previous error. If we were to run this experiment again we could easily solve these errors, by closely watching the string to make sure it does not come into contact with the table. We still believe that our method for solving for mass by using dynamic tension and acceleration of an object is a viable option. We are confident that if our errors were fixed the prediction of the mass of the cart would be much closer.
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