Last problem I can't get around.. 1. The problem statement, all variables and given/known data A ball is thrown upwards at some velocity. 2 seconds later the ball is caught 10m up on a building. What is the highest possible height of the ball? 2. Relevant equations X_f=x_i+V_x(t)-(1/2)(9.8m/s^2)t^2 (where X_f=10) f(t)=v_x(t)-(9.8m/s^2)t^2 (set to 0) X_f=x_i+V_x(t)-(1/2)(9.8m/s^2)t^2 (where t=1.5) 3. The attempt at a solution I have X_f set to 10 and find the velocity of 14.8m/s. This means that the maximum height was 11.175m. This seems a little off as the ball should have dropped 0.05meters farther than the 1.175meters from my calculations. Am I making a mistake with the first equation?