please answer asap i really need help
x (t) = 6t^3 - t + 4v (t)= x'(t) = 18t^2 - 1at rest when V = 0 or 18t^2 - 1 = 0 18t^2 = 1 t^2 = 1/18 t = sqrt (1/18) t = (1/3)sqrt2