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![[Post New]](/templates/default/images/icon_minipost_new.gif) 24 Jan 2008 15:26:10 IST
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a partilcle moves along a straight line with a retardation proportional to its displacement. its loss of kinetic energy for any diplacement is is proportional to a) x b)x2 c)in x d) ex
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24 Jan 2008 15:30:16 IST
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ans is b
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24 Jan 2008 15:30:46 IST
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its kind of shm
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" The difficult we do immediately, impossible takes a little longer "
--- U.S. Army
"It's better to have a gun and not need it than to need a gun and
not have it."
--- The Sniper
"You can get more with a kind word and a gun than you can with a
kind word. "
--- The Sniper
"Join the Army: travel to exotic distant lands; meet exciting,
unusual people and kill them. "
--- The Sniper
"The victor will never be asked if he told the truth."
--- Adolf Hitler
"Stop talking, start doing"
--- IBM
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24 Jan 2008 15:32:51 IST
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give the solution
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24 Jan 2008 16:00:52 IST
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a = -kx...k is a constant a can b written as v dv/dx.......now solve this differential to get ur answer
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24 Jan 2008 16:01:38 IST
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u try ...if u cant ...let me know
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24 Jan 2008 16:06:12 IST
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editted
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Goodbye Orkut
Hello GoIIT |
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24 Jan 2008 20:42:12 IST
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a=-kx v dv/dx=kx v dv= kx dx integratin both sides v 2  x 2 hence loss in KE is proportional to x square option b
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24 Jan 2008 20:58:52 IST
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Yes, akhil is right.
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Will nip in at times to solve problems :)
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