1. The problem statement, all variables and given/known data Starting from rest, a car accelerates for 8 seconds with a constat acceleration. During this time it travels 121 meters. Find its velocity at the end of the 8 seconds. 2. Relevant equations a=(2x)t^2 Vavg=(Vinital+Vfinal)/2 3. The attempt at a solution First, I found the average velocity by deviding 121 by 8 to get 15.125. Second, (with instruction from my physics teacher), I found the acceleration. a=(2x)*8^2 a=(2*121)/64 242/64=3.78 a=3.78 m/s Then, knowing the acceleration, I found the final velocity. Vavg=(0+Vfinal)/2 15.125=(Vfinal)/2 15.125*2=30.25 m/s So, Vfinal should be 30.25 m/s, correct? I'm fairly sure of my answer, but I like to check before I turn it in. Thanks in advance for a reply!