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The_Sliding_Block_Lab_Report

# The_Sliding_Block_Lab_Report - Ananth Bulusu 1891 Nick...

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Ananth Bulusu 1891 Nick Rodriguez Michael Burkett The Sliding Block #4 Physics 201 Monday 10/12/09 Abstract In this experiment we used a wooden block with a felt bottom attached to a string with a cup of sand passed over a pulley, on an aluminum track to determine the coefficient of friction as a function of its mass. We also determined the difference between kinetic friction and static friction. By using different masses on top of the block as well as placing a sheet of paper between the felt and aluminum we were able to see the relationship between mass and friction. Introduction In the sliding block experiment we determined how much mass must be added to the attached cup to make the wooden block move down the track. We did this with kinetic friction in which we gave the wooden block a slight push to get it started moving and we also did this using static friction where we did not give the block a push to get it moving. In this experiment we also placed a piece paper between the wooden block and the

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aluminum track to determine kinetic and static friction. We also found the average cup mass required to move the block with static and kinetic friction by using 200g on top our block and seeing how much sand it took to move the block five separate times. Our belief was that it would take more mass to move the block with static friction than the block with kinetic friction. We also believed that it would take more mass to move the block with paper beneath it than the block with no paper beneath it.
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