"Assuming 'a' is negative so that car A can come to stop."
That was my problem, I misread the problem. It was decelerate, not accelerate. Makes it easier to put into the equations of constant acceleration. I was integrating the ads=vdv formula.
That was my problem, I misread the problem. It was decelerate, not accelerate. Makes it easier to put into the equations of constant acceleration. I was integrating the ads=vdv formula.
