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A equilaterial triangle ABC formed from ...

A equilaterial triangle `ABC` formed from a uniform wire has two small identical beads initially located at `A`. The triangle is set rotating about the vertical axis `AO`. Then the beads are released from rest simultaneously and allowed to slide down. one long. `AB` and the other along `AC` as shown. Neglecting frictional effects, the quantities that are conserved as the beads slide down, are.
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