# Example Projectile Motion Lab Report - Cary Academy

Example Projectile Motion Lab Report - Cary Academy

Projectile Motion Lab 1.Distance (cm)12001000800600400200DistancePoly. (Distance)00 20 40 60 80 100Angle (degrees)Graph 1. Graphed Data from the Projectile Motion ExperimentAs seen in Graph 1, a parabola can be drawn by analyzing the data points on agraph. This graph suggests that there is an increase in range up to around 45degrees but then there is a decrease in range from there up to 90 degrees. Thisdata suggests that the optimal angle for maximal range is 45 degrees. This isprobably true because at this angle there is a balance of vertical velocity andhorizontal velocity. At 0 degrees the projectile gun only creates a horizontal forcewhile at 90 degrees it only creates a vertical force, neither of which createsmaximal range. This was also observed in the water balloon game whenobservations were made prior to conducting the experiment.In conclusion, the hypothesis for this experiment was proven to be incorrect as itwas hypothesized that 0 degrees would create the greatest range. Instead, itseems that is likely that 45 degrees will produce the greatest range. Error in thisexperiment was caused by human error in shooting the guns, wind, and othervarious environmental differences while conducting the experiment. A futureexperiment might involve using projectiles of the same mass with different outertextures. Using these objects, one could study the effect of texture and thereforeair resistance on projectile motion range.Joselyn J. Todd, Example Lab, 9/12/2006 6

Sources (Note that this is a change. All sources can be listed at the end. List inthe order that they have been used and number them as such as superscripts.)1. "mechanics." Encyclopædia Britannica. 2006. Encyclopædia BritannicaOnline. 30 Aug. 2006 .2. Fendt, Walter. “Projectile motion.” 9/13/200, 8/30/2006 http://www.walterfendt.de/ph11e/projectile.htm3. No author cited. “The Physics of Projectile Motion”. No date. 8/31/06.http://library.thinkquest.org/2779/.Joselyn J. Todd, Example Lab, 9/12/2006 7

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