# Lab 3 .docx - Lab#3 Vectors Data table#1 Forces in 1-D...

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Lab #3: Vectors Data table #1: Forces in 1-D Total mass Angle Force (weight) x-comp y-comp F 1 150 g 1.47 N 1.47 0 F 2 150 g 180º 1.47 N -1.47 0 Sum of components: 0 0 Resultant: N at from +x-axis 0 N at No angle Observations on Step 5: The weights are pulling each other at the same force and cancels each other out. The middle washer does not move from the middle. Data table #2: Equal Forces in 2-D Total mass Angle Force (weight) x-comp y-comp F 1 150 g 1.47 N 1.47 0 F 2 150 g 120º 1.47 N -0.735 1.27 F 3 predicted 150 g 240º 1.47 N -0.735 -1.27 F 3 measured 150 g 238º 1.47 N -0.779 -1.25 % Error in Angle: 0.833% Data table #3: Unequal Forces in 2-D
Total mass Angle Force (weight) x-comp y-comp F 1 150 g 1.47 N 1.47 0 F 2 250 g 105º 2.45 N -0.634 2.37 F 3 predicted 255 g 250.45º 2.50 N -0.837 -2.37 F 3 measured 254 g 253.5º 2.49 N -0.707 -2.39 % Error in Angle: 1.40% Data table #4: Change of coordinates Total mass Angle Force (weight) x-comp y-comp F 1 150 g 45º 1.47 N 1.04 1.04 F 2 250 g 150º 2.45 N -2.12 1.23 F 3 predicted 256 g 296º 2.51 N 1.08 -2.26 F 3 measured 252 g 298 º 2.47 N 1.16 -2.18 % Error in Angle: 0.676%
REFLECTION Equal Forces in 1-D 1. Were the two forces involved in balancing the washer in the center of the table truly equal? If you had to use a “correction mass,” offer an explanation of why “unbalanced” forces resulted in a net force of zero.