I got a question about relative velocities

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The velocity of B relative to A is -10 m/s or 10 m/s depending on the perspective taken. If B is moving at +10 m/s relative to A, then A's velocity relative to B is -10 m/s. Both A and B can consider themselves stationary, viewing the other as moving. There is no absolute distinction in motion; it is all relative. The concept of velocity is directional, making the reference axis important for understanding relative speeds.
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velocity of B relative to A is -10 m/s or 10 m/s

i am very confusing this. if i change the question to velocity of A relative to B , IS the answer same as above?~
 
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If the velocity of B relative to A is +10 m/s along some axis, then the velocity of A relative to B will be -10 m/s.
 
Yes, as Doc has said. Both A and B can consider their own velocity to be zero. They both consider the other to be the one going 10 m/s. There is no law of physics that allows you to make an absolute distinction between who is moving and who is not.
 
Doc Al said:
If the velocity of B relative to A is +10 m/s along some axis, then the velocity of A relative to B will be -10 m/s.
what do you mean by along some axis
 
my_wan said:
Yes, as Doc has said. Both A and B can consider their own velocity to be zero. They both consider the other to be the one going 10 m/s. There is no law of physics that allows you to make an absolute distinction between who is moving and who is not.

Thank you i got it
 
q2501 said:
what do you mean by along some axis
A velocity such as -10 m/s only makes sense with respect to some direction.
 

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