Irodov Problem 1.138 || Mechanics || Olympiad Training || JEE Advance ||

Описание: A horizontal plane supports a stationary vertical cylinder of radius R and a disc A attached to the cylinder by a horizontal thread AB of length 𝑙_0 (Fig. 1.32, top vies). An initial velocity 𝑣_0 is imparted to the disc as shown in the figure. How long will it move along the plane until it strikes against the cylinder? The friction is assumed to be absent.
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