Two smooth disks A and B each have a mass of $0\mathrm{.}5$ kg$.$ Both disks are moving with the velocities shown when they collide. The coefficient of restitution is e $=0\mathrm{.}7.$ Suppose that $($vA$)1=7$ m$/$s$,($vB$)1=3$ m$/$s$.$

Determine the magnitude of the final velocity of AA just after collision.

Determine the magnitude of the final velocity of BB just after collision.

Determine the angle between the xx axis and the final velocity of BB just after the collision, measured clockwise from the negative xx axis.