Everything in the world requires a little effort to move.Without force from someone or something, objects will remain in place.When moved or forced in motion an object eventually stops due to air slowing it down, other objects in its path, or simply due to the flat ground bringing it back to its original state.
For any object or thing to accelerate or gain speed it must be forced or pushed. Depending on the mass of the object and the force used upon it varies how fast, high, or how quick the object will move.
No matter the amount of action force there is, there will be the same amount of reaction force against the action force. There are many things that one could accomplish because of the law of Reaction.
A rocket is stable until a force or thrust is applied to move the rocket.
A rocket with more more ass with require more thrust or force to move. A rocket with very little mass will take a very small amount of force or thrust to be moved.
The force of a rocket must always be greater than the force of gravity to move up. If the rockets thrust is less than gravity then the rocket will go up.