The discussion centers on the analysis of a projectile's trajectory, specifically the angle at one-fourth of its flight compared to the launch angle. It is established that the angle of the projectile at 1/4 of its flight is not the same as the launch angle. The slope of the tangent line at any point on the projectile's path corresponds to the velocity vector's direction at that point, which changes throughout the flight. The participants emphasize the importance of distinguishing between initial and subsequent angles, as well as the horizontal and vertical components of velocity.
PREREQUISITESStudents studying physics, particularly those focusing on mechanics and projectile motion, as well as educators seeking to clarify concepts related to angles and trajectories in projectile dynamics.
No, you have no way to find out the launch angle. It is one of the inputs to the question. Just leave it as an unknown, ##\theta_0##. Rewrite your equation in post #28 using ##\theta_0## and ##v_0## as appropriate... then you are done.jeff12 said:Okay, so then am I suppose to find the launch angle first and then find the angle at another time after?