Lab Report Exp 5

# Lab Report Exp 5 - Physics 1408 Section Group 1 Experiment...

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Physics: 1408 Section: Group 1 Experiment 5: Air Resistance

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Sample Calculations Find the average of the trials Average = T 1 + T 2 + T n n Average = 1.41 m s + 1.39 m s + 1.52 m s + 1.36 m s + 1.41 m s 5 = 1.42 m s Find the natural log of the mass of the coffee filters ln ( m ) ln ( 3.75 g ) = 1.32 Find the natural log of average terminal velocity ln v T ) ln ( 1.42 ) = 0.351 Find the slope of the trend line Slope = y 2 y 1 x 2 x 1 Slope = 0.784 0.351 2.19 1.32 = 0.498 Find n n = 1 slope n = 1 0.498 = 2.01 Questions 1. The coffee filter diagram when first dropped is constantly increasing in velocity due to the acceleration from gravity. The acceleration from gravity is overcoming drag and the filter progressively moves faster. When the coffee filter has reached terminal velocity it is covering equal distances and is no longer accelerating because the drag force negates the gravitational force.
3. V T = ( mg 1 2 C d ρA ) 1 n Using the above equation, where A is equal to the cross-sectional area and m is equal to

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