1. The problem statement, all variables and given/known data home run hit and baseball just clears the top of the bleachers. @= 35 degrees bleacher height = 21 meters distance from bleachers to home plate = 130 meters neglect air resistance find initial velocity and time of flight 2. Relevant equations x comp: x= vcos@ t + at^2/2 y comp y= vsin@ t + at^2/2 vf^2= vi^2 + 2a(delta x) 3. The attempt at a solution The thing is, in order to solve for velocity itd help to know the time and to solve for time itd help to know the velocity. So i thought i'd use vf^2= vi^2 + 2a(delta x) since it doesn't have time in the equation. I got 0= (vi cos 35)^2 + 2(9.8) (130) i keep getting a negative inside the square root and im stuck. I just need a hint into the right direction, am i approaching this problem incorrectly?