Meriam, Kraige & Bolton — Kinematics of Particles: Problem 2_127

2/127 A projectile is launched from point A with the initial conditions shown. With the conventional definitions of \(r\)- and \(\theta\)-coordinates relative to the \(Oxy\) coordinate system, determine \(r\), \(\theta\), \(\dot{r}\), \(\dot{\theta}\), \(\ddot{r}\), and \(\ddot{\theta}\) at the instant just after launch. Neglect aerodynamic drag.