# exp-2 - Daejin(Bryan Kim PHY131L PHY 131L GENERAL PHYSICS...

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Daejin (Bryan) Kim PHY131L 1/23/07 PHY 131L GENERAL PHYSICS LAB Experiment 2 – Constant Acceleration Motion Objectives 1. To use measured data to calculate acceleration Equipment 1. Laser pointer-diode detector assembly 2. U- shaped track, clamp, and cup 3. computer with line fit program 4. ladder 5. balls of various Procedure We rolled a metal ball down at an incline with measured distances. By putting the laser point-diode detector at the end of the incline, it was possible to measure the final velocity of the ball before it rolled off the track. Also, by pressing a button as we let go of the ball, we measured the time the ball took to roll down. However, this measured time was inaccurate because we had to estimate exactly when the ball was let go from the hands. After several measurements of the ball’s velocity, we started measuring the final velocity from a shorter distance, in increments of 10 cm. After all the measurements, we made a graph of distance of incline vs. time squared. From this graph, the best-fit line of the data

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• Winter '07
• Vandervoort
• Acceleration, best-fit line, laser pointer-diode detector, Kim PHY131L, Daejin

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