Question

when inflating a balloon, which of the following represents an equal but opposite force acting on the balloon? (1 point)
tying the balloon
the expansion of the balloon
the air entering the balloon
releasing the balloon

Explanation:

According to Newton's third law of motion, for every action, there is an equal and opposite reaction. When inflating a balloon, the action is the air entering the balloon (force exerted by the air into the balloon). The reaction is the expansion of the balloon (the balloon's material exerts a force back on the air, resisting the expansion but in an equal - magnitude opposite - direction force pair relationship in terms of the interaction between the air and the balloon's surface during the inflation process). Tying the balloon and releasing the balloon are not direct force pairs related to the inflation force.

Answer:

the expansion of the balloon