1. A projectile is launched in a vertical plane, at an angle 0 with initial velocity vo. It must be caught in a frictionless circular tube of radius R in such a way that the trajectory of the projectile does not change abruptly when it enters the opening of the tube and, moreover, in such a way that the tube does not exert any force on the projectile at that moment. Determine the position of the opening of the tube and the inclination o of the tube under these D=? H=? conditions. Data: vo = 8 m/s, 0 = 60°, R = 2 m R

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Projectile Motion