$8\mathrm{.}32)$ Two skaters collide and grab on to each other on frictionless ice. One of them, of mass $66\mathrm{.}0$ kg$,$ is moving to the right at $2\mathrm{.}00$ m$/$s$,$ while the other, of mass $65\mathrm{.}0$ kg$,$ is moving to the left at $2\mathrm{.}80$ m$/$s$.$ What is the magnitude and direction of the velocity of these skaters just after they collide?