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friction lab

# friction lab - Physics 1420 Section C2 Lab 4 Friction Name...

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Physics 1420 Section C2 Lab 4: Friction Name: Ian Ally Partner: Darrell Mayberry Date: February 5, 2008 TA: Victor Guerro Abstract

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Two experimental procedures were performed. The first used a wooden block and a pulley mechanism on a track to determine the coefficient of static friction between the block and the track. The second determined the coefficient of kinetic friction by taking off the pulley system and raising the track by a certain angle where the block would begin to move and continue to move at a uniform speed. This was done for both of the sides of the rectangular block that had a large surface area and a side with a small surface area. The resulting data indicated that the coefficient of static friction is higher than the coefficient of kinetic friction. Also, there was only a .1% difference of between the coefficients of kinetic friction between the two surface areas, which means that the difference in surface area is almost negligible.
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