physic

You are traveling at a constant speed υM, and there is a car in front of you traveling with a speed υA You notice that υM>υA, so you start slowing down with a constant acceleration a when the distance between you and the other car is x.
What relationship between a and x determines whether or not you run into the car in front of you?
Express your answer in terms of the variables υA, υM, and a.

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  1. (uA²-uM²)/(2a)

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