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![[Post New]](/templates/default/images/icon_minipost_new.gif) 1 Feb 2008 17:51:21 IST
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Q2:A wire is elongated by 2mm when a brick is suspended from it.when the brick is immersed in water,the wire contracts by 0.6mm,what's the density of the brick?
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rate me if i'm right and nudge me if its wrong |
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1 Feb 2008 17:55:13 IST
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all we have to do here is to equate the young's modulus here.
first the force is mg,
then it is mg - (density of water * volume of the brick)
use y.m= stress/strain
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ameya s,
1 yr
iit bombay.
if you ever want to help me clean my room, go STUDY NOW!!! |
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1 Feb 2008 18:18:32 IST
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I am getting 1666 kg/m3
is it right?
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" Always remember money isn't everything but make sure you have made a lot of it before talking such nonsense!"
- Bill Gates |
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