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@Gyro Gearloose
Note for OP
+solved @user to close the thread when your doubt is solved. Mention the user who helped you solve the doubt. This will be added to their stats.The volume decreases to 1/64th implying radius decreases to 1/4, that should change the mass too right?
Conservation of angular momentum
The factor by which Moment of interia decreases is the factor by which angular velocity increases and the factor by which time period decreases
Here MOI decreases both cuz of radius and mass right?
yes
But in the solution they didnt take change of mass into account
ye they should have mentioned
that mass is constant
Okay so if they dont mention anything then we take mass as const? I shouldnt do it the logical way then?
no.
Its usually clearly mentioned in questions what you have to assume but since here its not mentioned i guess both should be correct
Okayy got it, thank you so much
+solved @Joe Biden
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