1. The problem statement, all variables and given/known data You throw a ball straight up with a speed of 14m/s. What is the acceleration of the ball 1.5s after you threw it? Alright, the dilemma im having is the answer is -9.8m/s^2. It doesn't make sense to me how the acceleration can be that at 1.5s. The -9.8m/s^2 (gravity of earth) is the force pulling down on the ball not the acceleration after 1.5S as it is still moving up rather then down. What is the correct acceleration, or is -9.8m/s^2 correct?