Problem: How long will it take a car to cover a distance of 125 m if it accelerates at 4.0m/s^2 for 9.0 sec? I'm in an intro to physics course. Our teacher has taught us nothing about quadratics yet. He has, in fact, taught us very little. Friends have tried to teach me how to solve this question using the " D = .5*a*T^2" equation, but I just can't grasp it. Since using the quadratic formula hasn't even been mentioned in class, I feel like that's the not the way he wants us to solve it. Is there another way to solve this question? Solution attempt: 1/2at^2 + v0t - s = 0 is all my friends have given me. I am completely lost.