1. The problem statement, all variables and given/known data An object is launched upwards with a velocity of 25 m/s. At what time (or times) will the object be located twenty meters above the ground? 2. Relevant equations 3. The attempt at a solution I started off with the following variable list: Xo=0 Vo=25 X=0 V=0 t=? a=-9.8 Which seems very off to me. When trying to solve I got 2.55 seconds. But is there another time where it reaches 20m? How do you solve this? Thanks!