1. The problem statement, all variables and given/known data Freight trains can produce only relatively small acceleration and decelerations. (a) What is the final velocity of a freight train that accelerates at a rate of 0.0400 m/s^2 for 8.00 min, starting with an initial velocity of 4.00 m/s? 2. Relevant equations v=v0 + at x=x0 +v0t +1/2at^2 v^2=v0^2 +2a(x-x0) 3. The attempt at a solution Why can't i use the first equation I listed to solve this problem? Using that equation, you end up with v = 76.8 m/s If you first use the second equation, and then the third equation, you end up with v = 23.2 m/s Thanks in advance!