The Total Mechanical Energy Of The Basketball - 946 Words

The final graphical comparison we can make is the total mechanical energy of each of the basketballs, as seen in Graphs 6 and 12. The total mechanical energy is simply the sum of the kinetic energy and potential energy of the basketball. The shape of the graph is a plateau of flat near-constant mechanical energy during the air-time and sharp decreases with a rebound to a lower plateau after each bounce. As seen in the graphs for kinetic and potential energy, the well-inflated basketball had a value of total mechanical energy of 3.45 Joules when it was in the air after the first bounce and the less-firm underinflated ball had a smaller value of only 2.90 Joules after the first bounce. These values are equal to the potential energy of the basketballs at that point in time because the only energy of the basketball while it is in the air is potential energy due to gravity, the mass of the ball, and the height of the ball. The total mechanical energy also had sharp decreases down to z ero total mechanical energy during the bounces as both the kinetic and potential energy are at zero. Since the total mechanical energy of the basketballs is close to the value of the potential energy of the basketballs, we can draw the conclusion that the trend of the firmer, well-inflated basketball had a smaller rate of decrease of mechanical energy in between bounces than the less firm, underinflated basketball. These decreases in total mechanical energy after bounces along with the smallShow MoreRelatedConservation of Energy Lab Essay1536 Words   |  7 PagesFREE FALL AND CONSERVATION OF MECHANICAL ENERGY ABSTRACT Free fall is defined as the ideal falling motion of an object that is subject only to the earth’s gravitational field. 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