- #1
yungman
- 5,718
- 241
This is in a question of finding retarded potential where the point charge is moving at constant velocity.
The book let the charge pass through the origin at t=0 so [tex]\vec w(t) = \vec v(t)[/tex] which I don't understand.
This might be a stupid question. velocity is a vector with amplitude and direction. So what is the meaning of constant velocity?
Of cause I know |v|= constant, but does constant velocity implies it travel in a straight line because traveling in a curve is not consider constant velocity?
The book let the charge pass through the origin at t=0 so [tex]\vec w(t) = \vec v(t)[/tex] which I don't understand.
This might be a stupid question. velocity is a vector with amplitude and direction. So what is the meaning of constant velocity?
Of cause I know |v|= constant, but does constant velocity implies it travel in a straight line because traveling in a curve is not consider constant velocity?