1. The problem statement, all variables and given/known data Part A. A motorist travels at 10 m/s when he sees a deer in the road 45m ahead. if maximum negative acceleration is -7m/s^2, what is maximum reaction time (delta t) of the motorist that will allow him to avoid hitting the deer? Answer in seconds please. So Initial Velocity is 10 Acceleration is 7. Final Velocity is 0 (I think you can deduce that because the motorist wants to come to a stop, which would be 0?) Xo=0 (I'm not sure how, but that's what I think, can somebody explain?) Part B: If his reaction time is 3.97461s, how fast will he be traveling when he reaches the deer? 2. Relevant equations This hw assignment was given on the three motion at constant acceleration equations: V=Vo +at X=Xo+Vot +1/2(a)t V^2=Vo^2+2a(delta x) 3. The attempt at a solution I'm not sure which of those equations to use or if I should use past equations I have learned such as speed or acceleration or velocity. I have tried all three, but when I check my answer it is always wrong. Since I am not able to get Part A, I cannot get Part B. Can somebody help me out.