Statement 1:When tall buildings are constructed on earth,the duration of day-night slightly increases

Statement 2 :Moment of Inertia about the axis of rotation increases

Question

Statement 1:When tall buildings are constructed on earth,the  duration of day-night slightly increases

Statement 2 :Moment of Inertia about the axis of rotation increases

anonymous · Answer

true true!! wow amazing examples for me to teach in class :D

dls · Answer

A)Statement 1 is true;Statement 2 is true Statement 2 is a correct explanation for Statement 1

B)Statement 1 is true;Statement 2 is true Statement 2 is NOT a  correct explanation for Statement 1

C) Statement  is true,Statement 2 is false

D)Statement 1 is false,Statement 2 is true

Save this pattern,thats whow wea re gonnna answer all the questions

anonymous · Answer

A is right!!

dls · Answer

Correct! :O
why?

anonymous · Answer

a typical ice skaters delight you dunno?!?!??!?!?? wait see this video!!

anonymous · Answer

http://www.youtube.com/watch?v=J14NnWLaFWI&feature=g-crec-u

anonymous · Answer

btw i made that video :P

dls · Answer

kya bol raha hai ? u.u

dls · Answer

didnt understand a pellet in that video :P

anonymous · Answer

:O.. what are you studying IIT then?!? conservation of angular momentum!!

Iw = constant.. when no net torque.. .when the ice skater retracts her arms.. ther I goes down.. and hence w goes up so she speeds up!!

dls · Answer

I goes down because radius decreases?

dls · Answer

oh,and I subbed you :D http://www.youtube.com/user/DarkLordShivam?feature=mhee

anonymous · Answer

IS IT JUST ME OR THIS UTUBE HAS BECOME FASTER??? :O :O >. and yes radius goes down!!

dls · Answer

okay :o and its just u nvm 
and what has all this got to do with buildings? :p

anonymous · Answer

when you build tall building.. some mass goes away from the centre of rotation thus increases M.I

anonymous · Answer

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anonymous · Answer

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anonymous · Answer

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