Two beads of mass `2m` and `m`, connected by a rod of length `l` and of negligible mass

Two beads of mass `2m` and `m`, connected by a rod of length `l` and of negligible mass

Two beads of mass `2m` and `m`, connected by a rod of length `l` and of negligible mass are free to move in a smooth vertical circular wire frame of radius `l` as shown. Initially the system is held in horizontal position `(` Refer figure `)` The velocity that should be given to mass `2m (` when rod is in horizontal position `)` in counter `-` clockwise direction so that the rod just becomes vertical is `:`

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Two beads of mass `2m` and `m`, connected by a rod of length `l` and of negligible
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Two beads of mass `2m` and `m`, connected by a rod of length `l` and of negligible mass
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Question - Vertical circular motion with constraints (Medium level)
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