Know the distance
Let the initial velocity be V0, the acceleration be a, the displacement be s, and the final velocity be v. in the linear motion, there are v = V0 + ATS = v0t + 0.5at & # 178; = (V0 + 0.5at) t 2S = (2v0 + at) t = (V + V0) TT = 2S / (V + V0) v = V0 + A2S / (V + V0) V & # 178; + V × V0 = V × V0 + V0 & # 178; = V0 & # 178; + 2sav = root