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13. The first goal for this part of the lab is to predict the horizontal range of the projectile. Using the equation Ay = Viyt + - at, to set up the equation to find the hang time of the projectile by plugging the known values into the equation. What do you notice about this equation, compared to the other times we have use this when calculating time? 14. You will need the quadratic formula to solve the equation from the previous step. If you know the quadratic formula from memory, copy it down here. If you do not know the quadratic formula, then you may need to look it up and define for yourself what each of the variables mean in order to use it correctly. 15. Use the quadratic formula to find the hang time of the ball. You may find that you have two solutions when you use the quadratic formula correctly. Are the two solutions legitimate? Why or why not? Which of the two "times" that you calculated from the quadratic formula should you use to move forward with finding the horizontal range of the projectile? Justify your reasoning for your choice