This simulation enables you to experiment with various versions of the situation illustrated in figure 3.27. We assume the ball is thrown from 1.6 meters above the ground, as in the figure. Air resistance is ignored. You can investigate the effect of changing gravity on the behavior of a ball thrown at a given angle and speed. Then change the throw's parameters and try the new throw in all three gravity environments. Is the range of a thrown more sensitive to gravity when the throw is "steep" or "flat"? What is the best combination of angle and initial speed for getting the ball near home plate in minimal time in the low gravity of the moon? The simulation enables you to find approximate solutions such questions by trial and error.