Consider Example 4.D.3 from the lecture book. Here, a disk of mass is tied to a rubber band, with the opposite end of the rubber ban being tied to a peg at A. The disk is set into motion at the ...

Close-up on shiny boots, knotted elastic, cobbles. Within the confines of a courtyard two demure little girls are playing a game of confinement, entrapment, escape. An elastic band has been ...