According to Newton's third law, for every action force there is a reacgtion force, then how can a team win a tug of war contest
2 answers
The two teams exert different forces on each other, but matters is the net force on each team. The winning team is able to generate a larger backward force upon itself at the ground (with their feet) than the other team is able to exert on them.
I meant to say just the opposite in the first sentence..
"The two teams exert equal and opposite forces on each other" . The rest is OK
"The two teams exert equal and opposite forces on each other" . The rest is OK