nacer chadli opened the scoring with a left-footed strike from outside the box on the half-hour mark .
jack colback equalised for the home side immediately after half-time after the ball fell kindly in the area .
christian eriksen won spurs the lead back with the swede 's curling free-kick missing everyone .
harry kane topped off a relatively quiet game with a runaway goal after regular time was up .
newcastle have now lost six consecutive premier league matches under manager john carver .
fans protested before and during the match against owner mike ashley 's perceived lack of ambition .