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We know that a null vector (or zero vector) has direction but no magnitude. I am having some trouble understanding this concept.
1. What's the direction of a null vector, really?
2. Also as null vector is a vector, can velocity or acceleration also be null vectors?
3. If so, then what does a null velocity vector mean? Under which physical condition a particle can have such velocity?
4. Similarly, what does a null acceleration vector mean? Is there any physical example?
I guess the example of a null position vector would be the position vector of a particle which is at the origin of the coordinate. Is this correct?
I don't know if these have been asked before (couldn't find using the forum search).
I appreciate your help.
Thanks in advance.
1. What's the direction of a null vector, really?
2. Also as null vector is a vector, can velocity or acceleration also be null vectors?
3. If so, then what does a null velocity vector mean? Under which physical condition a particle can have such velocity?
4. Similarly, what does a null acceleration vector mean? Is there any physical example?
I guess the example of a null position vector would be the position vector of a particle which is at the origin of the coordinate. Is this correct?
I don't know if these have been asked before (couldn't find using the forum search).
I appreciate your help.
Thanks in advance.