And we can write that, x-component vector is 5 square roots of 3 times i , 5 square roots of 3 times i, and then its going to be plus the y component, the vertical component which s five times j, which s five times j and so what's really neat here is now you can specify any vector in two dimensions, by some combintion of i and j scaled up combination of i and j and if you want to go in three dimension, and you often will, as specially physics class moves on through the year you can introduce a vector in the positive z-direction depending upon how you want to do it, although z is normally up and down, but whatever the next dimension is you can divine, divide a vector k that goes into that third dimension here I will do it in a kind of unconventional way