Meriam, Kraige & Bolton — Kinematics of Particles: Problem 2_166

2/166 Car A is traveling at the constant speed of 60 km/h as it rounds the circular curve of 300-m radius and at the instant represented is at the position \(\theta = 45^\circ\). Car B is traveling at the constant speed of 80 km/h and passes the center of the circle at this same instant. Car A is located with respect to car B by polar coordinates \(r\) and \(\theta\) with the pole moving with B. For this instant determine \(v_{A/B}\) and the values of \(\dot{r}\) and \(\dot{\theta}\) as measured by an observer in car B.