A force in the negative direction of an x$-$axis is applied for $17$ms to a $0\mathrm{.}18$ kg ball initially moving at $16\mathrm{.}0$ m$/$s in the positive direction of the axis. The force varies in magnitude and results in an impulse of magnitude $4\mathrm{.}28$ Ns$.$

What is the velocity of the ball just after the force is applied? Indicate the direction of the velocity by its sign.