My professor did this question in class and I am a little confused. I wrote it down in my notes but I kind of don't understand it. The question is: Find theta 1/4 of the way through the flight of a projectile in time He does not give us numbers. Everything has to be solved algebraically. My question is the angle at 1/4 of the flight the same as the angle of the projectile when it is fired? And also is the slope of the tangent line at any point on the projectile the same as the slope at that point on the projectile?