Que:- If the earth suddenly contracts to the half it's present radius keeping it's mass constant, what could be the length of the day?
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sid6957:
hay
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HéY Héllø...
NamasKar#
So, The answer Is..: R=R/2. Now we know, Moment of inertia is directly proportional to r^2. So after shrink, the moment of inertia become 1/4 of the original.
#I write as much as I know
#ThankYou#
#*RamSharma*
NamasKar#
So, The answer Is..: R=R/2. Now we know, Moment of inertia is directly proportional to r^2. So after shrink, the moment of inertia become 1/4 of the original.
#I write as much as I know
#ThankYou#
#*RamSharma*
this is an incomplete ans. why is it marked as brainliest
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Miss..according to me
The time will be 6 hours... As by conservation of angular momentum...we can easily get the final angular velocity of earth which will be 4 times the earlier one so the time period is Inversely proportional to angular velocity therefore it will decrease by 4 times..
The time will be 6 hours... As by conservation of angular momentum...we can easily get the final angular velocity of earth which will be 4 times the earlier one so the time period is Inversely proportional to angular velocity therefore it will decrease by 4 times..
perfect
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