Driver travelling at 25 m/s when she spots a sign that reads "Bridge Out Ahead". It takes her 1.0s to react and begin braking. Car slows down at a rate of 3.0m/s^2. She stops 5.0m short of thewashed out bridge. A) How much time was required to stop once the brakes were applied? B) How far from the bridge was she when she first noticed the sign? I think I can get B as soon as someone helps me with A. I have no idea what equation to use first off because I have tried what I believed was the right one without any success. Vi= 25 m/s Vf= 0m/s acelleration rate= 3.0 m/s^2 Time = ? Logically the answer will be approximately 2.6, just looking for the right formula please.