The model shows how the batted ball’s range depends on both the drag force and the Magnus force (the force due to a spinning object moving in an airflow) and considers the relative importance of the drag and Magnus forces. A simple linear algebraic equation presented in this paper predicts air density well. This is followed by temperature (13%), barometric pressure (4%) and relative humidity (3%). Surely, the Babe wouldnt give a corked bat to charity. It happened in his 1st year with NYY, and the bat was donated to a charity to help starving Armenian children in Turkey. As shown by this model, on a typical July afternoon in a major league baseball stadium, altitude is easily the most important factor, explaining 80% of the variability. 07-05-2012, 10:14 AM In Robert Creamers biography on Babe Ruth, it says Ruth donated the bat he used to hit his 50th homerun.
Regression analysis is used to show the relative importance of each of the four factors (altitude, temperature, humidity, and barometric pressure) and to look for interactions between them. This paper shows that air density is inversely related to altitude, temperature and humidity, and is directly related to barometric pressure.
Altitude and weather affect air density, which in turn affects how far a batted baseball or softball travels.
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