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- Kinematics is the physics of moving
- objects. In an object's motion, it is necessary to
- consider the object's position, displacement, speed,
- velocity, and acceleration.
- Displacement, the change of position, has
- magnitude equal to the initial position subtracted
- from the final position. This quantity is a vector
- quantity and not a scalar as it might at first appear
- and is directed from the initial to the final point.
- An object might move 2 meters from its starting
- point, but the change in position tells in what
- direction the object moved the 2 meters. Additionally,
- from the definition of change of position, the actual
- path the object travels is irrelevant. All that matters
- for this definition is the initial position and the final
- position.
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