Question

if a baloon filled with air and its mouth untied is released with its mouth in the downward direction , it moves upward. why?

Answer 1

This is because of the pressure exerted by the air in the balloon to the outer athmospher

Answer 2

Answer:

The air filled in the balloon ejects at very high speed, which exerts an upward thrust force on the balloon to conserve the momentum of the whole system. Hence, the balloon moves in an upward direction.

Explanation: