Also Known As
First law of motion
|Law of inertia||Objects at rest will stay at rest, and objects in motion will stay in motion in a straight line, unless acted upon by an unbalanced force.|
Second law of motion
|F=ma||The force of an object equals its mass times its acceleration.|
Third law of motion
|Law of action and reaction||For every action, there is an equal and opposite reaction.|
A stable rocket has the center of pressure (cp) behind the center of gravity (cg). Image Credit: NASAFor a rocket to fly in a straight path to its destination, the rocket must remain stable during flight. A stable rocket is one that flies in a smooth, uniform direction. An unstable rocket flies a crooked path, sometimes tumbling or changing direction. Unstable rockets are dangerous because it is not possible to predict where they will go. They may even turn upside down and suddenly head back directly to the launch pad.
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