Moment of inertia of a free rotating body deceased by 10% them it's rotational kinetic energy
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by angular momentum conservation I1w1=I2w2
w2=I1w1/0.9×I1 = w1/0.9
rotation kinetic energy = 1/2(I2)(w2)^2 =1/2(0.9×I1)(w1/0.9)^2 =1/2×I1×(w1/0.9)
=k.I.initial/0.9
w2=I1w1/0.9×I1 = w1/0.9
rotation kinetic energy = 1/2(I2)(w2)^2 =1/2(0.9×I1)(w1/0.9)^2 =1/2×I1×(w1/0.9)
=k.I.initial/0.9
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