$5.)$ Two balls collide inelastically as shown below. Ball $1$ has a mass of $0\mathrm{.}15$ kg and an initial velocity of $0\mathrm{.}9\frac{m}{s}$ at an angle of $50$ with respect to the positive $y-$axis. Ball $2$ has a mass of $0\mathrm{.}26$ kg and an initial velocity of $0\mathrm{.}54\frac{m}{s}$ in the positive $x-$direction. After the collision, ball $2$ has a velocity of $0\mathrm{.}7\frac{m}{s}$ as shown. Find the final velocity of ball $1$ and the unknown angle $.$ The collision is inelastic.