Lab 9 - Results
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Dec 6, 2023
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RESULTS
Group Lab Report *
Title of Experiment: Torque and Equilibrium
Date: 10/25/2023
Class, Section & Lab group: Phys 244-205, Group 5
Recorder (consolidates report and submits into dropbox): Eatha Taylor Lynch
Group Members PRESENT
Eatha Taylor Lynch, Joanne Tsai, and Arbind Pant
* Before beginning, save this report on your desktop with the Recorder's last name appended.
1.
Discuss your results. Is the sum of all forces zero within the uncertainty? Is the sum of all torques zero within the uncertainty? Was the meterstick in equilibrium?
The sum of all forces does not equal zero anywhere in the uncertainty. The calculated sum of force is 0.39 Newtons with an uncertainty of 0.07 Newtons. This creates a range of 0.32N-0.46N. The sum of all torques when the axis arm is at x = 0 does
not contain zero within the uncertainty. The sum of all torques with an axis of zero meters
was calculated to be 0.209 N*m with an uncertainty of 0.037 N*m; this creates a range of
0.171N*m-0.245N*m. The sum of all torques when the axis arm is at x = 0.5 meters also does not contain zero. The calculated torque for a lever arm of x = 0.5 meters is -0.012 N*m with an uncertainty of 0.002 N*m, this creates a range of 0.01N*m-0.014N*m.
Although the data seems to imply that the sum of all forces and torques are not zero, it is clear that the meterstick should be in equilibrium. It is likely that this discrepancy was due to one of two errors: human error or systemic error. For human error, it is possible that one of the users improperly set up the CAPSTONE software, calculated some values wrong, or did not input the data correctly. Another form of error may be systemic error in which one of the force systems may have been off (despite tareing).
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