Soccer player #$1$ is $8\mathrm{.}72$ m from the goal, as the figure shows. If she kicks the ball directly into the net, the ball has a displacement labeled $.$ If$,$ on the other hand, she first kicks it to player #$2,$ who then kicks it into the net, the ball undergoes two successive displacements, y and x$.$ What are the magnitudes of $($a$)$x$,$ and $($b$)$y$.$