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This is possible via the conservation of momentum. A rocket ejects matter from its back and this matter carries momentum. To conserve momentum the rocket must gain an equal amount of momentum in the opposite direction. Since momentum is related to velocity this causes the rocket to move. This is basically an application of Newton's third law.
You might have been confused with the situation in air. For example an airplane moves through air by pushing air past it (using its propeller). This accelerates the air, and thus increases its momentum. The airplane must therefore gain momentum in the opposite direction, and accelerates itself as well.
The only difference between the airplane and the rocket is that the rocket carries the stuff it accelerates (and ejects) while the airplane can use the air that is already present all around it.
Note that while this is the basic explanation, the situation with the rocket is made somewhat more complicated by the fact that as the rocket loses fuel it also loses momentum because momentum is velocity times mass and the lost fuel lowers the mass of the rocket. You might want to look up Tsiolkovsky's rocket equation if you want more information.
What else can I help you with?
Is a rocket an invention?
Yes, a rocket is a human-made invention that uses propulsion to propel itself through space by expelling mass in the opposite direction. It was developed to travel outside Earth's atmosphere for various purposes, including exploration, communication, and satellite deployment.
How does a rocket propel?
The gases in the fuel chamber of the rocket combust and push on the inside of the rocket, propeling it forward or upward. This is because in space there is nothing for a rocket to push of off, except itself.
What is the back part of a rocket called?
The back part of a rocket is called the rocket nozzle. It is responsible for directing the flow of exhaust gases to generate thrust and propel the rocket forward.
Why does a rocket carry its own oxygen?
A rocket carries its own oxygen because it needs oxygen to enable combustion of fuel for propulsion in the vacuum of space where there is no atmospheric oxygen. This allows the rocket to generate thrust and propel itself forward.
How are space shuttles powered once out of earth's atmosphere?
Space shuttles are powered using rocket engines that burn liquid fuel (such as liquid hydrogen and liquid oxygen) or solid rocket boosters. Once out of Earth's atmosphere, the space shuttle relies on these engines to propel itself through space and maneuver in a zero-gravity environment.
What is pojectile in physics?
A projectile is any moving object which does not propel itself. For example a rocket burns fuel to propel itself through the sky whilst a shell fired from a cannon has no way to propel itself.
How did Apollo 9 reach its required speed?
the rocket it was attached had enough thrust to propel the combined weights of the spacecraft and the rocket itself to over 17,500 mph.
How does inertia apply to a rocket?
Inertia in a rocket refers to its resistance to changes in motion. A rocket overcomes inertia by expelling mass through its exhaust to propel itself forward. The rocket's momentum is determined by the amount of mass it expels and the speed at which it does so.
Action-reaction engines that propel an object forward?
a rocket
Is a rocket an invention?
Yes, a rocket is a human-made invention that uses propulsion to propel itself through space by expelling mass in the opposite direction. It was developed to travel outside Earth's atmosphere for various purposes, including exploration, communication, and satellite deployment.
How does a rocket propel?
The gases in the fuel chamber of the rocket combust and push on the inside of the rocket, propeling it forward or upward. This is because in space there is nothing for a rocket to push of off, except itself.
What job does the propulsion system in a rocket do?
The propulsion system in a rocket generates thrust to propel the rocket through the atmosphere and into space by expelling hot gases at high speeds in the opposite direction to create forward motion.
What did they use Rocket arrows for?
To propel there arrows father and with more force.
What is the name of action reaction engines that propel an object forward?
rocket
What is the combustion chamber of a rocket?
The combustion chamber of a rocket is the part of the engine where fuel and oxidizer are mixed and burned to produce hot, high-pressure gas that is expelled through the nozzle to create thrust. It is a critical component that helps propel the rocket into space.
What is a rocket toy name?
A popular rocket toy name is the "Stomp Rocket." It is a toy rocket launcher that uses air pressure to propel foam rockets into the air when stomped on.
What is the back part of a rocket called?
The back part of a rocket is called the rocket nozzle. It is responsible for directing the flow of exhaust gases to generate thrust and propel the rocket forward.
