A system consists of a small bead of mass m that can slide along a large uniform ring of mass 5m. Initially, the ring is at rest on a horizontal table, and the velocity of the bead is v. Find the minimum kinetic energy of the bead during the subsequent motion of the system. Friction is negligible.
Quite a few readers successfully tackled our October Challenge, Tackle this!, including several first-time contributors. We are pleased to recognize the following successful solvers:
Guidelines for contributors
Many thanks to all contributors and we hope to hear from many more of you this year!
Note: we always welcome and appreciate reader-contributed original Challenges!
The solutions to the past Challenges can be found here: https://aapt.scitation.org/topic/collections/physics-challenge
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Boris Korsunsky, Column Editor