Equilibrium lab - creates a margin of error for our...

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Sam Jorden Physics Lab Tuesday @2:00 October 14, 2008 Physics Lab Equilibrium Question #1 Do the x and y components of force acting on the ring add to 0 within your uncertainty? Answer : Although some of the values do add to zero, some of the values only come very close. The reasons for this are many, including un-avoidable error, having the ring not perfectly centered but still in equilibrium, and the fact that the pulley’s used were not perfect as assumed in the calculations. The results did, however, fit into the values calculated for calculated error. Question #2 What other forces, aside from gravity, are acting in this experiment? What effect do they have on the results? Answer: The friction experienced by the circular motion of the pulley, and tension. Tension keeps the system in equilibrium, and friction resists either gravity or tension and
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Unformatted text preview: creates a margin of error for our calculations. Question #3 Can you simply add the total forces together, rather than breaking them into components, to get the net force acting on the ring? Why or why not? Answer: No, because differential directional forces cannot be added together. X can be added to x and y to y, but not vice-versa. Question #4 What sources of error exist and how would they change your measurements? How does friction in the pulleys change your results? Answer: Friction, the inability to judge perfect equilibrium with the human eye, and weight error due to breakdown over time. As mentioned before, friction either resists gravity or tension and creates a margin of error....
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