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PHYS Lab #1 - David Thibodeaux PHYS 111A H03 Lab#1 Summary...

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David Thibodeaux PHYS 111A – H03 Lab #1 9/17/2010 Summary: In this Laboratory experiment, an ultrasonic motion detector was used to compute the distance, velocity and acceleration of an object. Using a software interface, motion graphs were produced, and the data was analyzed to determine the accuracy of the motion detector. Setup: An ultrasonic motion detector was attached to a clamp and a vertical stand. The motion detector was connected to a desktop computer through a digital interface. Using LabPro, data was collected and analyzed. Part I – Creating motion graphs Part A 1. Before attempting to create complex graphs, a simple motion graph was created, with the subject moving slowly away during a ten-second interval: Graph A-1: Distance vs. Time: 2. Average velocity over interval: .23 m/s 3. Once the average velocity was found, an interval of relative consistency was also used to compute the average velocity. Average velocity between consistent interval: .262 m/s 4. Graph A-2: Velocity vs. Time
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5. The velocity of the whole time interval ( .23 m/s
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