1. The problem statement, all variables and given/known data A student decides to measure the muzzle velocity of a pellet shot from his gun. He points the gun horizontally. He places a target on a vertical wall a distance x away from the gun. The pellet hits the target a vertical distance y below the gun. (a) Show that the position of the pellet when traveling through the air is given by y = Ax^2, where A is a constant. (b) Express the constant A in terms of the initial velocity v and the free-fall acceleration g. (c) If x = 3 m and y = 0.21 m, what is the initial speed of the pellet? 2. Relevant equations 3. The attempt at a solution Can I assume vi is constant? For (a) I got y=x^2[g/(2vi^2)]. Is vi a constant? If so then I know to do it. If not can you help? Thanks.