1) ¿Cuál es la resultante de un sistema formado por dos fuerzas F1: 150 Kgf y F2: 350 Kgf, separadas por un ángulo de 300? 2) ¿Cuál es la resultante de un sistema formado por dos fuerzas F1: 20 Kgf y F2: 10 Kgf, separadas por un ángulo de 600?

At a certain instant after jumping from the airplane a, a skydiver b is in the position shown and has reached a terminal (constant) speed vb = 52 m/s. the airplane has the same constant speed va = 52 m/s, and after a period of level flight is just beginning to follow the circular path shown of radius ρa = 2330 m. (a) determine the velocity and acceleration of the airplane relative to the skydiver. (b) determine the time rate of change of the speed vr of the airplane and the radius of curvature ρr of its path, both as observed by the nonrotating skydiver.