1. The problem statement, all variables and given/known data An object moving on the x axis with a constant acceleration increases its x coordinate by 31 m in a time of 6.4 s and has a velocity of 20 m/s at the end of this time. Determine the acceleration of the object during this motion. 2. Relevant equations v=vi+at V^2=Vi^2+2ax 3. The attempt at a solution What I did: found the initial velocity by dividing 31m/6.4s and got 4.84375 used galileo's formula: V^2=Vi^2+2ax my answer was 6.3 or so and it was wrong I am not so sure that the initial velocity is right, but I cannot think of any ideas. Can someone assist me in the right direction?