I just have one more question; Vertical motion is symmetric in projectile right? So, is Initial velocity = Final velocity? If projectile is launched from ground level I mean.
If I can
Vf=Viy+at
Viy=-at
Viy=-(-9.8*2)
Viy=19.6
Viy=Vsin
19.6=Vsin40
V=30.5
The only problem is this is apparently wrong as there is no choice of answer that is 30.5