Understanding the Difference Between Deceleration and Deceleration Force

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In summary, deceleration and deceleration force are not the same thing. Deceleration is a negative acceleration and is commonly used in everyday language. Physicists, on the other hand, prefer to use negative numbers and refer to it as acceleration. Deceleration force, on the other hand, is a force that causes a deceleration and is related to acceleration through Newton's law. When you hit the brakes in a car, the car decelerates and you feel the deceleration force as a pull forward.
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alias25
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is there a difference between decelaration and a deceleration force or are they just the same thing?

thanx(an don't laugh)
 
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Deceleration is the common word for a negative acceleration. Physicists don't use it much because they are cool with negative numbers, so that negative- positive, it's all acceleration.

Deceleration force would be a force (of course). A force is different from an acceleration and they are related by Newton's law: force = mass X acceleration, or F = ma, as it's usually stated.

So if you tromp on the brakes, what your car is doing is decelerating, and that pull forward you feel is deceleration force.
 
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thaaaaannnnnxxxxxx:smile:
 

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