Recap - Billiards

A cue stick strikes a $0.17\ \mathrm{kg}$ cue ball at rest with an impulse of $0.34\ \mathrm{N\cdot s}$ along the x axis. The cue ball rolls into an object ball of the same mass at rest, and afterwards moves at $1\ \mathrm{m/s}$, $60^\circ$ above the x axis. Find the x velocity $\relax v_{2x}$ of the object ball.