1. The problem statement, all variables and given/known data a ball is projected at an angle of 37degree with respect to the horizontal with an initial speed of 25ft/s. if it is traveling horizontally when it hits a verical wall, what is the height of the wall? 2. Relevant equations 3. The attempt at a solution a) Vxi = 25 x cos37 = approximately 20ft/s , Vyi = 15 x sin37 = app 15ft/s height of wall = Y axis displacement so delta Y = Vyi x delta time + 1/2 x gravity x delta time^2 there is no information about displacement to X axis in this case how can I get delta time?