The Senegal international striker is confident the Magpies will not suffer a loss of morale after losing at the Etihad, as they look to recover in time to face Manchester United
The Magpies lost their unbeaten record after conceding three goals at the Etihad Stadium, before scoring a late consolation goal through substitute Dan Gosling.
“It’s a disappointing result but there are positives,” the striker told The Daily Mirror.
Left back Ryan Taylor endured a difficult first half after conceding a penalty converted by Mario Balotelli after a handball, and being beaten by Micah Richards minutes later for City’s second.
Forward Hatem Ben Arfa hit the post in the second half, but went on to concede a penalty from which Sergio Aguero scored the third for Roberto Mancini’s side.
But Ba insists players will not let their heads drop ahead of a difficult run of fixtures.
He added: “We have some very strong characters and I am sure this result will not affect us. We’re not going to struggle mentally because of one defeat.”
Newcastle remain third in the Premier League, but face the trip to Old Trafford on Saturday, followed by a home game against Chelsea.
Ba continued: “We played well and still have plenty of confidence after this.
“I definitely think we can get something at United.”