1. The problem statement, all variables and given/known data A car accelerates at 1.95m/s2 along a straight road. It passes two marks that are 28.0m apart at times t=3.95s and t=5.20s. What was the car's velocity at t=0? 2. Relevant equations 3. The attempt at a solution t1=3.95s, t2=5.20s, d=28m, t=t12-t1=1.25s, a=1.95m/s2 v0=? 28m=v0*1.25s+1/2*1.95m/s2*(1.25s)^2 v0=21.2 m/s Could anybody tell me where have I done wrong?