2007-11-29 13:15:24 · 4 answers · asked by enamarquez17 1 in Science & Mathematics ➔ Physics
Conservation of momentum. If the balloon and air are stationary before the air is released, then the total momentum is zero. When the air is released, it moves through the neck of the balloon and has momentum. To keep the total momentum of the balloon+air system zero, the balloon must have equal and opposite momentum to the air - it moves forward.
2007-11-29 13:24:47 · answer #1 · answered by mis42n 4 · 2⤊ 0⤋
The released air creates a jet stream which propels the balloon forward.
2007-11-29 13:23:38 · answer #2 · answered by Richard B 7 · 1⤊ 0⤋
Because the air get released rapidly creating thrust pushing the balloon forward.
2007-11-29 13:19:26 · answer #3 · answered by chococrazy1 3 · 2⤊ 0⤋
by third Newton's law
2007-11-29 13:28:34 · answer #4 · answered by superstring39 2 · 0⤊ 0⤋