Theoretical Mechanics IPSP

Jürgen Vollmer, Universität Leipzig

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book:chap3:3.6_problems [2022/01/30 04:19] – add Problem 3.22: Length of the groove of venyl records jvbook:chap3:3.6_problems [2022/01/30 04:23] (current) – jv
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-<wrap #quest_line-integral-venyl-discs > Problem 3.22: </wrap>** Length of the groove of venyl records **+<wrap #quest_lineintegral_venyl-disc > Problem 3.22: </wrap>** Length of the groove of venyl records **
 \\ \\
  
 <WRAP 200pt right > <WRAP 200pt right >
-{{:book:chap3:venyl-disc-dj_spooky.jpg?200|}}+{{  :book:chap3:venyl-disc-dj_spooky.jpg?200  }}
  
 DJ Spooky playing venyl records at the Sundance Film Festival (2003), DJ Spooky playing venyl records at the Sundance Film Festival (2003),
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 In the frame of the disc we will denote the position of the needle as In the frame of the disc we will denote the position of the needle as
 \begin{align*} %  \label{eq:} \begin{align*} %  \label{eq:}
-    \vec q (\theta) = R(\theta) \: \hat{\mathbf r}(\theta)+    \mathbf q (\theta) = R(\theta) \: \hat{\mathbf r}(\theta)
 \end{align*} \end{align*}
 Here  $\hat{\mathbf r}(\theta)$ is the radial unit vector of polar coordinates taken with respect to the center of the disc, Here  $\hat{\mathbf r}(\theta)$ is the radial unit vector of polar coordinates taken with respect to the center of the disc,
book/chap3/3.6_problems.1643512797.txt.gz · Last modified: 2022/01/30 04:19 by jv