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![[Post New]](/templates/default/images/icon_minipost_new.gif) 23 Nov 2007 19:34:23 IST
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i may go wrong but i think when a body goes down an inclined plane without friction, its acceleration does not depend on its mass so its acc should be gsin30 so 120=1/2gsin30t^2 but \\ this is a jee problem, may not be so easy,
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