x^2 + y^2 = r^2
The Attempt at a Solution
I understand everything, but the last segment.
What vector B when added to vector A, gives a resultant vector with no x component and a negative y component 3.34 units in length?
So 3.34 = Sqr Root [(0^2) + (y^2)]
You get 3.34 again, and because it states the y component should be negative, I plugged in -3.34, but alas, it's wrong. -.-
Ignore the 2.12 that I plugged in on the screenshot, I was just trying different ways of working this out.