Question

State law of conservation of angular momentum

Answer 1

Law of conservation of angular momentum says that when net external force or physics term torque acting on a system about it's axis becomes zero then angular momentum remains constant and matematically =constant....

Answer 2

Answer:

HERE IS YOUR ANSWER

Explanation:

Laws of Conservation of angular momentum

STATEMENT: If no external torque acts on body then angular momentum of body remain constant

PROOF:

We know angular momentum

L=r×p

Differentiating both side w.r to time

dL/dt=d(r×p)/dt

dL/dt=(r×dp/dt)+(dr/dt×P)-------------------(1)

dP/dt=F,dr/dt=V

P=mV

(1) -->(r×F)+(V×mv)

dL/dt=T+m(v×v) therefore r×F=T (Torque)

dL/dt=T--------------------(2)

If T =0 then dL/dt=0 i.e.L=Constant body the angular momentum of body is Constant

EXPLANATION:HOPE IT HELPFUL

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