A women is traveling at 50km/h, she sees a stop sign and takes 1.4 s to react, she starts decelrating at 2.3m/s and there is a broken bridge 150 m ahead of the sign.
Is she going to stop in time?
I am not sure but i think one of these equations can be used:
DeltaD = v1 * delta T + 1/2 + a (delta t)^2
V2 = v1^2 +2 * a * delta d
delta D = (v1+v2) / 2 * Delta T
Delta D = V2 * Delta T - 1/2 * a (delta T)^2