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A has travels `x_(1)` when accelerates from rest at constant rate `a_(2)` for some time and after that travels a distance `x_(2)` when declelertes at a constant rate `a_(2)` to come to rest A student established a reletion `x_(1) + x_(2) = (a_(1)a_(2) t^(2))/(2(a_(1) +a_(2)))` choose the correct option (s)

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