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I'm trying to illustrate a classic physics problem where a rope that is coiled on the ground is lifted by one end until it is vertical; a quick online search turned up this hand-drawn sketch. Is it possible to create a similar sketch using tikz?

itsricobitches
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  • I haven't coded anything so far because I'm not sure where to start. I wondered about trying a 3dplot in tikz with a spiral (drawn in polar coordinates) on the plane, and a line going up the vertical axis, but I thought that a physicist might have a more attractive solution :) – itsricobitches Jul 05 '19 at 02:42
  • \documentclass[tikz,border=3.14mm]{standalone} \usepackage{tikz-3dplot} \begin{document} \tdplotsetmaincoords{70}{100} \begin{tikzpicture}[line join=round,tdplot_main_coords] \coordinate (T) at (0,0,5); \begin{scope}[canvas is xy plane at z=0] \draw (-2.5,-2.5) rectangle (2.5,2.5) ; \draw plot[variable=\t,domain=1800:0,samples=361,smooth] ({cos(\t)*\t/1000},{sin(\t)*\t/1000}) [rounded corners] to (T); \end{scope} \end{tikzpicture} \end{document} –  Jul 05 '19 at 03:52
  • @marmot That's exactly what I was looking for! And much more elegant than what I was going to do - thank you! :) – itsricobitches Jul 05 '19 at 18:41

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