Guest

4. An equilateral 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 along AB and the other along AC as shown. Neglecting frictional effects, the quantiti es that are conserved as beads slides down are

4. An equilateral 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 along AB and the other along AC as shown. Neglecting frictional effects, the quantities that are conserved as beads slides down are rotation

Grade:

2 Answers

rohit kantheti
20 Points
11 years ago

answer is - angular momentum and total energy conserved

vikas askiitian expert
509 Points
11 years ago

as the beads are sliding ,distance from axis of rotation is changing so moment of inertia is changing ...

now since there is no non conservative force such as friction so total energy must be conserved ...

no external torque acts on the system so its angular momentam must be conserved ....

W -> changes , I-> changes , L->constant , E->constant

option b is correct

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free