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1

Acceleration can be achieved by changing the magnitude of the velocity or the direction of the velocity. Here is an example-based description/solution: If you have ever been on a fast-moving merry-go-round, you have probably felt the centripetal acceleration pulling you radially outward form the center. So, for when the ship is traveling from point A to ...


0

Answers to your questions have been furnished in the long list of comments others have provided here. I will try to summarize them with a minimum of rocket science. To start with, reaction motors have been rigorously modeled for over a hundred years. Their behavior is so well-understood that the design of reaction motors is an engineering discipline; as ...


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Rockets are not necessarily unstable. As long as the center of pressure is lower than the center of gravity, aerodynamic forces will act to restore the rocket to its trajectory. Increasing fin size lowers the center of pressure, and adding weight to the nose raises the center of gravity. However, as niels said, most rockets don't rely on aerodynamics to ...


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Rocket-propelled fireworks have nozzles made out of pressed cardboard or fired clay, contain fuel and oxidizer that is often not well-mixed or correctly proportioned, contain no guidance control systems, and have bodies and fins that are assembled out of cardboard and glue by poorly-paid workers. It is therefore natural for them to exhibit unpredictably bad ...


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