A rifle has been sighted in for a 91.4m target. If the muzzle speed of the bullet is v0=427 m/s, what are the two possible angles theta1 and theta2 betweent the rifle barrel and the horizontal such that the bullet will hit the target? One of the angles is so large that it is never used in target shooting.
I know you have to use trig identities, but I'm not sure how to get to that point.
Maybe get the time it takes in one dimension to go half way?
The Attempt at a Solution