Purpose: This week, Scientific AmeriKen will investigate the relationship between the distance an object is thrown and the weight of the object. An investigation sure to have powerful real world applications.
Hypothesis: It is the hypothesis of this experiment is a linear relationship exist between throwing distance and the weight of an object. This implies that distance will have an inverse relationship with weight such that an increase in weight will decrease distance and viceversa. This also implies that theoretical maximum distances and weights can be found for the thrower.
Equipment: Needed for this experiment was a scale, rocks of various sizes, a pen and paper.
Procedure: The first step is to measure and record the weight of the rocks, then throw the rocks in a consistent manner. Rocks thrown in this experiment were done so in a "two handed shot put" style. Pace off or measure with a measuring tape the distance the rock travels. For each rock, repeat twice for right handed throws and twice for left handed throws. Average out the total from each trial, and plot weight vs ave. distance traveled. Also, for each trial multiply distance traveled by the weight and compare for all trials.
Results:
Right Handed Results
Weight (lbs.)  Trial #1 Distance (ft.)  Trial #2 Distance (ft.)  Ave Distance (ft.)  Distance x Weight (ft. x lbs) 
9.5 Pounds Right Hand  37 Feet  37 Feet  37 Feet  351.5 ftlbs 
12.5 Pounds Right Hand  28 Feet  27 Feet  27.5 Feet  343.8 ftlbs 
27 Pounds Right Hand  19.5 Feet  21.5 Feet  20.5 Feet  553.5 ftlbs 
32 Pounds Right Hand  17 Feet  17.5 Feet  17.25 Feet  552.0 ftlbs 
Left Handed Results
Weight (lbs.)  Trial #1 Distance (ft.)  Trial #2 Distance (ft.)  Ave Distance (ft.)  Distance x Weight (ft. x lbs) 
9.5 Pounds Left Hand  29 Feet  27 Feet  28 Feet  266.0 ftlbs 
12.5 Pounds Left Hand  26 Feet  25 Feet  25.5 Feet  318.8 ftlbs 
27 Pounds Left Hand  18 Feet  19 Feet  18.5 Feet  499.5 ftlbs 
32 Pounds Left Hand  14.5 Feet  14 Feet  14.25 Feet  456.0 ftlbs 
Graph 1: Illustrates amount of force applied
as a function of the weight of the rock.
R.H.= Right handed throws L.H.= Left handed throws 
Graph 2: Illustrates Distance
rocks traveled as a function of their weight.
Eq of R.H. Throws
Eq of L.H. Throws

Conclusion: The results of this experiment yield some interesting information. Limited data allow for only a subjective view of the hypothesis's correctness. Judging from graph #2 it would seem as though linear best fit lines work nicely for L.H. results and moderatly well for R.H. results. This implies that the relationship between weight and throwing distance is linear. However, if this is the case, it would imply that a rock of greater weight then 56.1 lbs could not be thrown using the "shot putt" style, a fact that will remain untested until a rock of such size is found. Another interesting result which does not support the hypothesis is the large difference in amount of ftlbs in the different throws. It is noted how the amount of force applied by the thrower increases as the weight of the object increases. Most likely one would expect that if distance had a linear relationship with object weight, then one would expect that inputed force would remain constant for all throws so that the only two variables remain distance or weight. For the sake of argument, Scientific AmeriKen accepts this second explanation, thus refuting the hypothesis, as we hope that we should be able to throw a wussy little 60 pound rock.