1. The problem statement, all variables and given/known data The following is data from a computer simulation for a batted baseball with mass 0.145 kg, including air resistance: t x y v_x v_y 0 0 0 30.0 m/s 40.0 m/s 3.05 s 70.2 m 53.6 m 18.6 m/s 0 6.59 s 124.4 m 0 11.9 m/s -28.7 m/s How much work was done by the air on the baseball as it moved from its initial position to its maximum height? How much work was done by the air on the baseball as it moved from its maximum height back to the starting elevation? Man, I am clueless about this problem. The baseball has to move in a parabolic motion though, right? It's a batted ball. I made a bar graph first of all (Initial) KE = PE+KE(Final) Initially, the Vx and Vy are 30.0 m/s and 40.0 m/s respectively. I did the Pythagorean theorem and obtained V = 8.37m/s Now 1/2mv^2 = mgh + 1/2mv^2 .5(.145kg)(8.37m/s)^2 = (.145kg)(9.80m/s^2)(53.6m) +1/2(.145kg)(18.6m/s)2 + [tex]Delta[/tex]Uinternal -96.17J = Uinternal ?