# Joint Entrance Examination/2000 Screening/Q004 Roatting triangular frame with beads, what quantities are conserved

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| Original Question by Dharav Here's the question... An equilateral triangle ABe 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 along AB and the other along AC as shown. Neglecting frictional effects, the quantities that are conserved as beads slides down are (A) angular velocity and total energy (kinetic and potential) (B) total angular rnomentum and total energy (C) angular velocity and moment of inertia about the axis of rotation (D) total angular momentum and moment of inertia about the axis of rotation. Posted by Dharav 11:28, 17 August 2009 (UTC) | What's Up? Latest discussions on the forum Mechanics-Help Joint Entrance Examination/2000 Screening/Q003 A tank with two holes, one square and another round Joint Entrance Examination/2000 Screening/Q005 Toppling vs Sliding of a cube Joint Entrance Examination/2000 Screening/Q015 Pendulum sliding on a plane Joint Entrance Examination/AIEEE 2009/Q083 youngs modulus User:Thewinster/HHF/Mechanics-Preload Physics-Help User:Thewinster/Sandbox/Forum-Watch User:Thewinster/Sandbox Joint Entrance Examination/2000 Screening/Q023 capcitors and dielectric, equivalent capcitance Joint Entrance Examination/2000 Screening/Q027 Wind power turbine relation between wind speed and output power Joint Entrance Examination/2000 Screening/Q030 Hollow Double Convex Lens with variable liquids inside |
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