Question

Let h=vo^2/2.9sinthetacostheta
Model the horizontal distance in meters travled by a projectile. If the initial velocity is 44 meters/secon, which equation would you use to find the angle needed to travel 150 meters?

Answer 1

I think it would be 8.98sin(2theta)=150
since if you set the equation to 150 and add in the pieces the word problem gives us
150=44/4.9sinthetacostheta
and 44/4.9=8.98
so 150=8.98sinthetacostheta

Answer 2

oh wait but since the intial velocity is squared then it becomes
150=395.10sint(2theta)

Answer 3

it turned out to be 197.55sin(2theta)=150