1. The problem statement, all variables and given/known data A mortar round is fired over a building that is 2600m away, at an initial velocity of 240m/s. The building is 1600m tall and 100m wide. Calculate the distances which are safe from mortar shells left of the building. 2. Relevant equations 1.) Vy(t) = Vyo - at 2.) Sy(t) = Syo + Vyo - 0.5at^2 3. The attempt at a solution I can use the above equations to find an angle by guessing a distance where the projectile lands to then calculate the max height of the arc and see if it could clear the building but it seems like this would be doing it the wrong way around as I would have to keep making guesses. Is there some way I could factor in the height of the building to my equations?