123_lab5_newtonI

123_lab5_newtonI - Physics 123 - Minilab 5 NEWTON'S LAWS -...

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Physics 123 - Minilab 5 NEWTON'S LAWS - I Purpose Study the effect of velocity and acceleration on the tension in a pulley string holding a weight. Introduction According to Newton's Second Law, the net force on a mass must change if its acceleration changes in either magnitude or direction. No net force means the body moves at constant velocity (which need not be zero). In this lab you will record the force on a body connected by a string over a pulley to a force probe. The probe directly measures the attached force, such as the tension in the string. Handle the probe very carefully. Procedure In the Course files folder, open the file for Lab 5, which will start up the LoggerPro program. You should see a blank plot of force (in Newtons) versus time. Attach the force probe to the bar that holds the pulley by putting the bar through the ~1cm hole in the force probe. Tighten the screw. With no weight hanging from the probe, click “Collect” and plot the data. If the plot does not read zero, you must set it to
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This note was uploaded on 03/24/2011 for the course PHYSICS 123 taught by Professor Madey during the Fall '08 term at Rutgers.

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123_lab5_newtonI - Physics 123 - Minilab 5 NEWTON'S LAWS -...

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