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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. .A. angular velocity and total energyB. angular velocity and moment of inertia about axis of rotationC. total angular momentum and moment of inertia about axis of rotationD. total angular momentum and total energy |
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Answer» Correct Answer - D There is no external torque so angular momentum is conserved also force acting on system are conservative so mechanical energy of system is also conserved. |
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