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Offline Umerhassan

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physics query
« on: May 16, 2010, 11:59:45 pm »
q no 22 may june 05

the answer i keep getting is A :S
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Offline cashem'up

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Re: physics query
« Reply #1 on: May 17, 2010, 03:48:38 am »
Young= (F/A)/(delta L /L) we can also rite this Y=FL/Adelta L
lets consider P
Y = FpL/Adelta L
now Q
Y= F2L/(a/2 x delta l )
so Y= Fq4L/A delta L rite

now equate them
FpL/Adelta L=Fq4L/A delta L
FpL/A=Fq4L/A
Fp/Fq = 4/1
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Offline Umerhassan

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Re: physics query
« Reply #2 on: May 17, 2010, 01:31:21 pm »
thanx a lot :D
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