1. The problem statement, all variables and given/known data A car starts at rest and accelerates in 4 seconds to a speed of 20 m/s, which it maintains for the next 8 seconds. Find the total distance travelled. 2. Relevant equations d= vi*t +1/2 at^2 d= Vavg*t = Vf+Vi/2 *t 3. The attempt at a solution The total time is 12seconds right? vi=0 vf=20m/s I can't figure this one out...please help?