Basic Considerations
Since we must keep v in the plane of the screen, we can see that the angle between v and B will always be 90o, so sin(qvB) = 1.
Next, if we have no charge, there will be no force! That means, if our projectile is neutral, all we have to do is shoot it directly at the target. The speed does not matter. To determine this direction, we simply use trig: tan(qparticle) = y/x, or