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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

A

increases by 72%

B

decreases by 72 %

C

increases by 20%

D

decreases by 20%

Text Solution

Verified by Experts

The correct Answer is:
D
`(L_(2)-L_(1))/(L_(1))=(1)/(2)(Delta KE)/(KE_(1))`
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