Physics Lab 1, Prob 1 and 2

# Physics Lab 1, Prob 1 and 2 - Sweeney 1 Straight Line...

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Sweeney 1 Straight Line Motion September 30, 2009 Performed by: Tim Sweeney , Liz Donner, Jake Bendel Dr. Alexander Heger TA name: Leonardo Santiago Statement of Problem: In this lab the problem was to better comprehend the elements of one-dimensional motion, or motion along a straight line. We were to investigate relationships among quantities useful for describing objects’ motion. Such relationships include comparing the correlations between position, time, velocity, and acceleration. We used an electric, self-propelled motorized car on a flat level track to explore principles of constant velocity motion. We made a movie with the video equipment provided. This movie was analyzed with LabVIEWtm to study the position and velocity of the cart with respect to time. Prediction : Our group predicted that since the toy car is motorized and moving at a constant velocity, the graphs of position vs. time, instantaneous velocity vs. time, and instantaneous acceleration vs. time will look like this:

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Sweeney 2 The following equations, which we learned during class, assisted us in our predictions toward this lab. Mathematically we define the instantaneous acceleration as the limit of delta v over delta t as the time interval delta t goes to zero. Acceleration is therefore a derivative of velocity, which is displayed directly below: = = a lim∆t 0ΔvΔt dvdt This equation below displays the velocity in one dimension under constant acceleration. = + v at v0 This equation below represents the position in one dimension under constant acceleration. = x 12at2 + + v0t x0 Trial # Displacement (meters) Time (seconds) Uncertainty (seconds) 1 1 m 2.9 s +/- 0.5 s 2 1 m 2.2 s +/- 0.5 s 3 1 m 2.7 s +/- 0.5 s
Sweeney 3 We also predicted as a group that the constant velocity of the first car would be 0.385 m/s. We found this prediction by using a stop watch to time how long in seconds it took the car

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## This note was uploaded on 06/29/2011 for the course PHYS 1301 taught by Professor Zudov during the Spring '06 term at Minnesota.

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Physics Lab 1, Prob 1 and 2 - Sweeney 1 Straight Line...

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