Add new file

00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/40.classical-mechanics/30.n2/30.en/30.beyond/annex.fr.md

+---
+title: Classical mechanics, n2, beyond
+published: true
+routable: true
+visible: false
+lessons:
+    - slug: classical mechanics-n4-linear
+      order: 3
+---
+
+#### Classical mechanics, n2, to go beyond
+
+------------------------------------------------
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