- #1
Outrageous
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http://www.answers.com/topic/radial-and-transverse-components
From the above link,
1) e θ is a unit vector perpendicular to r in the direction of increasing θ.
Where is the direction of increasing θ? Is that a circle? θ Increase from 0 to 2∏.then eθ moves in a circle? direction always changes?
2) dr/dθ= eθ , and eθ is a unit vector, this is being defined ?why do we know that dr/dθ is the unit vector that is perpendicular to the radius? Do we have anything to prove it?
Please teach, thanks
From the above link,
1) e θ is a unit vector perpendicular to r in the direction of increasing θ.
Where is the direction of increasing θ? Is that a circle? θ Increase from 0 to 2∏.then eθ moves in a circle? direction always changes?
2) dr/dθ= eθ , and eθ is a unit vector, this is being defined ?why do we know that dr/dθ is the unit vector that is perpendicular to the radius? Do we have anything to prove it?
Please teach, thanks