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![[Post New]](/templates/default/images/icon_minipost_new.gif) 25 Mar 2008 21:15:12 IST
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had done this question before, but not able to do it now...correct answer is (B)...
plz give the solution...
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25 Mar 2008 21:41:07 IST
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Suppose u displace bloc A by x,
bloc B and bloc C will displace by x/ 2 .
so now net force on the mass m
=kx+ (kx/2)^2+(kx/2)^2
=2kx
ma=2kx
 =2k/m
T=2pi2m/k
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26 Mar 2008 09:31:23 IST
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how did you find out that spring B & C will displace by x/sqrt(2)...
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26 Mar 2008 09:38:31 IST
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personally i feel the extension wud be rt2 x not x/rt2
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Nitwit Blubber Odment Tweak
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26 Mar 2008 10:09:04 IST
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******
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science-
the most fundamental
the most eternal
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26 Mar 2008 10:20:30 IST
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its not ycos45+ ycos 45
its not lik each contribtes and they get added up...
total itself is y cos 45 only
the 2 ycos45 components r parallel basically they dont get added up n all
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Nitwit Blubber Odment Tweak
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26 Mar 2008 10:33:02 IST
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ya what was i thinking
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science-
the most fundamental
the most eternal
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26 Mar 2008 10:47:37 IST
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so acc to me force= 3kx=ma
so w=2piroot(m/3k)
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Nitwit Blubber Odment Tweak
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26 Mar 2008 17:54:38 IST
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even i am gettin m/3k, but i remember having solved it earlier...the correct answer is m/2k...plz tell me how to find the extension in springs B nd C
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I got it hope you also will... ha ha. cheers !
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My name is Arnav.
Hoping we'll meet in IIT next year ! |
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26 Mar 2008 18:27:13 IST
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i think the masses B and C get balanced over by each other
as they were perpendicular and the resultant is A
so the answer is B
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26 Mar 2008 18:28:27 IST
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F2 is the third force by C sorry, forgot to rit there Consider straight lines as Springs aagey aap samajhdaar hain..  |
My name is Arnav.
Hoping we'll meet in IIT next year ! |
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26 Mar 2008 18:52:13 IST
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after my post everything becomes inactive shit  |
My name is Arnav.
Hoping we'll meet in IIT next year ! |
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27 Mar 2008 17:01:05 IST
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thnx newarnav...man urs was just the perfect answer...rated u...
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