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A uniform flat square is placed on a rough floor. If the square is rotated around its edge, it takes time t to completely stop.
Calculate the time it takes ,t', to completely stop if it's rotated around its center with same initial angular velocity!
Click here to read the solution.

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5 comments

Anonymous said... @ February 18, 2009 at 1:21 PM

any hint for this question ?

Copycat91 said... @ February 18, 2009 at 4:14 PM

use superposition.

Anonymous said... @ February 18, 2009 at 5:56 PM

i was doing the same ... but m getting a factor of 4 ... not 2 :(

Copycat91 said... @ February 19, 2009 at 10:55 PM

Hmmm... Maybe we don't know who is wrong, but wait for the solution, so you can give feedback about it..

Anonymous said... @ February 20, 2009 at 12:15 PM

no ...till now ur answers are correct ...may be I am missing something.will see d solution and then let u know .

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