Understanding Non-Zero Velocity vs. Non-Zero Acceleration

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Non-zero velocity indicates an object's speed and direction, while non-zero acceleration refers to a change in that speed or direction. For example, a train at rest has both zero velocity and zero acceleration. When the train starts moving, it has zero velocity but non-zero acceleration as it begins to speed up. Once it reaches a constant speed, it maintains non-zero velocity with zero acceleration. Understanding these distinctions clarifies how motion is described in physics.
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Not a homework question - Just wondering.

What is the real meaning of non-zero velocity compared to non-zero acceleration like i don't really understand the difference. Anyone care to explain?
 
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Maroc said:
Not a homework question - Just wondering.

What is the real meaning of non-zero velocity compared to non-zero acceleration like i don't really understand the difference. Anyone care to explain?

non-zero *anything* just means that *anything* is not 0. Is there something more you're asking about?
 
Imagine you are on a train. If it is sitting at the station, not moving, that would be a zero velocity AND zero acceleration. The instant it takes off from the station, it will have a zero-VELOCITY, but a non-zero Acceleration. As it continues to accelerate it will have a non-zero velocity AND a non-zero acceleration. Once it reaches it's cruising speed, if there is nothing effecting the train, it will have a non-zero velocity but a ZERO ACCELERATION.

Let me know if this helps.
 
That is perfect guys. I was over thinking the concept.
 

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