# Lab #3 - Tim Matthews April 2 2008 Physics 133 Lab#3 Yipeng...

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Tim Matthews April 2, 2008 Physics 133 Lab #3 Yipeng Yang Abstract The purpose of this experiment was to compare the Force of gravity to the uniform circular motion experienced by the mass when it spun around the center shaft. Once these values were obtained and plotted on a graph they should have made a slope equal to one, meaning that they are essentially the same value. However we didn’t quite get exactly one, more like 1 and 1.4. Theory Newton’s Second Law states that Force is equal to an objects mass times its gravitational pull. (F=M*g). We were then comparing that value to the value we obtained with the uniform circular motion. ( 2 2 / 4 T Mr F = ). Essentially they should be equal to each other or close to it. Newton’s law states that in order for an object to be in constant motion the force acting upon that object must be zero, however there will always be air resistance, friction and gravity acting on an object as long as it is in our atmosphere.

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## This note was uploaded on 04/25/2008 for the course PHYSICS 131 taught by Professor Hatch during the Spring '07 term at UMass (Amherst).

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Lab #3 - Tim Matthews April 2 2008 Physics 133 Lab#3 Yipeng...

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