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# What is the definition of "translational motion"?

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Translational motion is the movement of an object from one point to another through space. An example of this is a bullet fired from a rifle.

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Theoretically, translational motion of an object can occur along a curved path. In practical terms, however, translational motion more often occurs along straight lines. Since an object only changes its motion when a force acts upon it, and because force is defined as the product of mass and acceleration, it is more difficult to change the translational motion of a heavier object than a lighter one. The study of translational motion is known as translational dynamics.

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## Related Questions

• A:

The law of inertia is a fundamental physics principle used to describe how an object behaves in motion or at rest, particularly when forces are applied to it. The object can be anything that has mass.

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• A:

Friction is a force that opposes motion, so it is unhelpful in all situations where the motion of an object is desired. A by-product of friction is that energy is wasted in the form of heat, which can cause problems in temperature-sensitive environments.

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Force and motion are related because exerting force on an object causes a change in motion. An example would be kicking a ball to propel it forward. Two examples of natural forces are gravity and magnetism.