1. The problem statement, all variables and given/known data Golfer hits a golf ball so that it goes with initial velocity of 40 m/s at angle of 45 degrees. 100 m away is a lake that is 50 m wide. The ball will not bounce or roll when it lands. Where does the ball land? Before, in, or after the lake. 2. Relevant equations Vertical: a = (v-v0)/t Horizontal: Δx = v0t+1/2at2 3. The attempt at a solution I found the time as 2.8 s using the first equation by setting v = 0 (midway in flight), and v0 = 40sin45 Then I substituted the time into the second equation along with 0 for the acceleration since there is no horizontal acceleration and v0 = 40cos45. And got 79 m, so the ball lands before the lake. But apparently the answer is that it lands after the lake. What did I do wrong?