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Angular momentum is conserved in a system whose moment of inertia is decreased. What happens to K.E. of rotation (A) decreases (B) increases (C) remains the same (D) cannot say

Angular momentum is conserved in a system whose moment of inertia is decreased. What happens to K.E. of rotation


(A) decreases


(B) increases


(C) remains the same


(D) cannot say

Grade:upto college level

3 Answers

Hrishant Goswami
343 Points
8 years ago

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ABHISHEK
22 Points
8 years ago

remains the same

Hrishant Goswami
343 Points
8 years ago

ans is (b)because L(constant)=Iw(omega),therefore w=L/I

K.E.=(1/2)Iw2

K.E.=L/2I

therefore,K.E.is inversely proportional to I.

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