Australia won the inaugural day-night Ashes test by 120 runs on the last day, with Josh Hazlewood striking twice in the first three overs and Mitchell Starc finishing off the tail as the pace attack crushed England's slim hopes of a comeback victory.
While Root was batting England's hopes lingered of bringing off a record run chase of 345 at Adelaide Oval.
Nathan Lyon dismissed Moeen Ali and England were bundled out for 233 when Starc (5-88) returned with the new ball to remove Craig Overton, Stuart Broad and complete a five-wicket haul when he bowled Jonny Bairstow for 36.
The third Test will commence at the same venue from December 14.
"In both test matches we have competed for a couple of days but to win against Australia in Australia we have to compete for longer than that".
Delighted at the win, Australia skipper Steven Smith said: "We always had the faith in the team and the belief".
"If you look at the conditions and the way the ball moved around, we were massively in the game, we just couldn't quite take the wickets early which would've put them under a lot of pressure, but fair play to Shaun Marsh [scorer of an unbeaten 126 in the first innings], I thought he played exceptionally well and we have to make sure we're better next time around". In the surgical assault that led England to that point, Australia's bowlers did them a favour by bowling so well.
England could turn to a paceman of their own to exploit the Perth surface, with Mark Wood being given a chance to impress selectors after being included in a two-day England Lions warm-up against a Cricket Australia XI in Perth on Saturday.
Smith said he no longer needed to dwell too much on his decision regarding the follow-on.
The 27-yer-old played Test cricket for England against South Africa this summer but has missed most of the season with a heel injury. "Disappointing. I don't think we did ourselves justice", Root said. "That was also part of it", Smith further added. "Fortunately, we were able to hang in there and get the result we were after".