1. The problem statement, all variables and given/known data Suppose that a quadratic fit to a position plot yields the following fit result: y=4.97x^2+1.53x+.0503, how would I determine the accelearation due to gravity? 2. Relevant equations I know that y=1/2gt^2+Vnaught(t)+ynaught. I know that g is 9.87m/s^2. So in my original given equation, I know that 4.97 is half of the gravity, and 1.53 is my Vnaught. Would this be the answer they are looking for, or is there something I am missing? 3. The attempt at a solution I may be exploring this question deeper then I should. I believe that the acceleration due to gravity is 9.8m/s^2, and the initial velocity of the particle would be 1.53m/s?