Question

If a balloon filled with air and its mouth united is released with its mouth in the downward direction it moves upward why

Answer 1

Answer:

becoz a balloon is elastic and wants to withdraw it's smaller shape but the air inside restricts it to do so

but when the mouth is opened the balloon excrete all the air out then

there is a high pressure area created below the balloon so as high pressure always goes to low pressure

the pressure below the balloon goes up along with the ballon

also

as due to the law

''every action has a equal and opposite reaction "

the gas released is action and the movement of ballon is reactiob

Answer 2

Answer:

If the inflated balloon is released with its mouth untied in the downward direction, then it will move upwards because the air rushes out of balloon in the downward direction. The equal and opposite reaction of downward thrust of air pushes the balloon upwards.