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![[Post New]](/templates/default/images/icon_minipost_new.gif) 2 Apr 2008 21:07:39 IST
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see pls correct me if im wrong
the mass is actually at sin@ with the ground
so in time t
the potentiol energy increased =
work done by frictional force=f.s
since the elevator moves vt in 1 sec
so mgsin@vtsin@=work done
=mgvtsin^@
u can also say that if the elevator moves a distance vt then the mass will move a distance vtsin@
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