Heres the Problem...
A 2.0 kg object is launched from a 100 m tall cliff with an initial velocity of Vo=40m/s @ 30 degrees. There is a 40 m tall obstacle 200m from the base of the cliff.
a)write initial velocity in "i,j" notation
-I found this to be 34.64m/s i + 20m/s j = Vo
b) how far above...