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![[Post New]](/templates/default/images/icon_minipost_new.gif) 5 Apr 2008 11:46:05 IST
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45) since there is no non-conservative forces
the maximum elongation
mgh=1/2kx^2
or the decrease in height is propotional t increase in the elongation
hieght decreased is x if the springs elongation is x
therefore
mgx=1/2kx^2therefore x is 2mg/k
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