Paper Ball and Bean Bag Dimensions

Paper Ball Dimension

Four paper balls were made from two sheets of stiff copy paper. Four more from two sheets of white lined composition paper.

Stiff copy paper	Composition paper
mass diameter radius log(radius) log(mass) 1 53 26.5 1.42 0 0.5 40 20 1.30 -0.30 0.25 29 14.5 1.16 -0.60 0.125 22 11 1.04 -0.90	mass diameter radius log(radius) log(mass) 1 37 18.5 1.27 0 0.5 30 15 1.18 -0.30 0.25 22 11 1.04 -0.60 0.125 18 9 0.95 -0.90

Using a calculator with linear regression capability this data gives a slope of 2.39 for the stiff copy paper and 2.78 for the white lined composition paper. In the graph of log(mass) vs. log(radius), we see how well the points fit straight lines and estimate the slopes as 2.4 and 2.8.

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