1. The problem statement, all variables and given/known data a ball is thrown straight down from the top of a 220 feet building with an initital velocity of -22ft/s. What is the velocity of the ball after 3 seconds? What is the velocity of the ball after falling 108 feet? 2. Relevant equations s(t) = -16t^2 + Vi(t) + si vi = initial velocity, si = initial position 3. The attempt at a solution s(t) = -16t^2 +Vi(t) +si = -16t^2 - 22ft/s + 200ft V(t) = -32(t) - 22ft/s V(3) = -96 ft/s - 22ft/s = -118 ft/s I can seem to figure out how to determine the velocity of the ball after it has dropped 108ft. I should be able to do this, but i'm missing something, somewhere on what should be pretty basic. Thanks for any guidance!