# Postlab03 - Joshua Ouseph PHY n102M Post-Lab #3 For...

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Joshua Ouseph PHY n102M Post-Lab #3 For problems 1 & 2, compare equation 3.7 in the lab manual with F = M a . Hints: Which side of the equation corresponds to F and which side corresponds to M a ? When you change m 1 and m 2 , in the manner described in questions 1 & 2, what changes in F = M a ? I.e., how is F related to a and how is M related to a ? 1. What aspect of Newton’s 2 nd law is verified by a comparison of the results between the 150-155g and 300-305g data sets and also between the 150-160g and 300-310 data sets? a. The inverse relationship between mass and acceleration in Newton’s 2 nd law is verified by the above data sets. The acceleration in an Atwood machine equals the difference in masses multiplied by acceleration due to gravity all divided by the sum of the masses. Because of this, if the masses in the system have similar masses and add up to a large total sum, the resultant acceleration will be less than in a system with a lower total mass. Because the 150-155g and 150-160g data sets have the same difference between masses and lower total masses than the 300-305g and 300-310g data sets, they have a greater acceleration, which is what our data

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## This note was uploaded on 11/28/2011 for the course PHY 302 taught by Professor Staff during the Summer '08 term at University of Texas at Austin.

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Postlab03 - Joshua Ouseph PHY n102M Post-Lab #3 For...

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