1. The problem statement, all variables and given/known data Two trains trqvel on Paralel tracks in the same direction. Train 'A' has a length of 1 km and traveling at 50 m / s. Train 'B' has a length of 0.5 km and starts at just the moment when the rear of the train 'A' passes at the front of the train 'B'. Train 'B' has an acceleration of 3 m / s ^ 2 and a maximum speed of 60 m / s. a) At what instant does train B pass train A, that is to say at what point does the back of train 'B' pass the front of train 'A'? b) How far did train 'A' travel during that time? 2. Relevant equations I've got: V= V0 + at x= x0 +(0,5)t^2 3. The attempt at a solution I converted the lengths from km to m. Then, tried combining the equations, but i wind up with unknowns that i dont know what to do with.. Help me get started? Please!