Talk:Commands/@comment-109.124.163.82-20140917113912/@comment-27723099-20140925205918

Or just ask me ;)

/lotr_summon lotr.ThrownRock ~2 ~10 ~3 {Motion:[-2.0,2.0,0]}

This command shoots a rock in a bow to the west. You can change the direction and speed by altering the valuesin the "Motion" bracket.

There is also a vanilla variant: /summon FallingSand ~2 ~10 ~3 {Motion:[-2.0,2.0,0],TileID:1,HurtEntitys:0,DropItem:0,Time:1}

The difference is, that the vanilla command leaves a block where it hits and is more precise.