How Does a Rocket Ship Work Using Newton's Third Law?

[physicsilliterate69]

We developed this as a two object system (ship and fuel/gas). How would you explain a rocket ship to someone who has seem a model rocket, bottle rocket or fireworks shot into the air and woners how that works. Did you ever blow up a balloon and just let it go?

Okay...I know that 2 objects has to do with Newtons 3rd Law as it is the only one that contains 2 objects. And I think that the gas or fire or whatever pushes against the earth. And the Earth pushes against them also. Then I'm not sure.

 

[member 553083]

A rocket ship is an advanced version of a model rocket, bottle rocket, or firework. It utilizes the same basic principles that these objects use, but in a much more powerful way. A rocket ship works by creating thrust from burning a fuel and releasing it through the exhaust. This creates an imbalance of pressures between the inside and outside of the rocket, which causes the rocket to accelerate in the opposite direction of the exhaust (Newton's third law). It's like blowing up a balloon and then letting it go; the pressure of the air inside the balloon pushes against the atmosphere and propels it forward. The same concept applies to a rocket ship, with much more powerful fuel and a larger chamber that helps create a lot more thrust.