1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Polar Kinematics

  1. Oct 31, 2006 #1
    If we have a position vector [tex] \vec{r} = x\vec{i} + y\vec{j} [/tex] why is the polar form of the equation [tex] r = r\vec{r} [/tex]? Don't we need two parameters to define a postition? And [tex] r [/tex] is the magnitude of [tex] \vec{r} [/tex]?

    Thanks
     
  2. jcsd
  3. Oct 31, 2006 #2
    The two parameters are [itex]r[/itex] and [itex]\theta[/itex].

    http://mathworld.wolfram.com/PolarCoordinates.html
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook