If the kinetic energy of a rotating body...

If the kinetic energy of a rotating body about an axis is decreased by 36%, its angular momentum about that axis is

Increases by 72 %

Decreases by 72 %

Increases by 20 %

Decreases by 20 %

Text Solution

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The correct Answer is:

`(L_(2) -L_(1))/(L_(1)) xx 100 = (sqrt(K_(2))- sqrt(K_(1)))/(sqrt(K_(1))) xx 100 `

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