OK, so I had this physics homework question about 2 weeks ago, and I thought I would post it here to see if anyone can figure it out. Note: this homework assignment is overdue and can't go back, I am just asking to see if anyone can get it. Reason I am asking is because I asked 2 physics teachers in my high school and neither of them figured it out... I just found out about this website and a I am assuming everyone here is smart so I'm wondering if anyone here can get it. A cab driver picks up a customer and delivers her 3.10 km away, driving a straight route. The driver accelerates to the speed limit and, upon reaching it, begins to decelerate immediately. The magnitude of the deceleration five times the magnitude of the acceleration. Find the lengths of the acceleration and deceleration phases. p.s. I don't know what the answer is and neither can I check. It's an online assignment and so I can't change any answers from assignments that are overdue. And I guess since this isn't a homework help problem, more like see if you can figure it out for the heck of it, I post it here.