Two pool balls of equal mass move at straight angles and reach each other at the origin of a coordinate xy system. Ball A moves upward along the y-axis at 2.0 m/s, and ball B moves to the right along the x-axis at a speed of 3.7 m/s. After the collision, which is assumed to be elastic, the ball B moves along the positive y-axis. What is the final direction of ball A and what are its two velocity values?

+v B B +X 0 "B = 3.7 m/s (No se muestra [WA = 2.0 m/s la bola A despues de la A colision)