B a lk a la rn i m u s ta h k a m lik k a h iso b la sh d a b iz n i m o m e n tn in g m a k s im a l
q iy m a ti q iz iq tir a d i. M max n i a n iq la sh u c h u n m o m e n tla r te n g la m a s id a n x
b o ‘ y ic h a h o s ila o lib , u n i n o lg a te n g la y m iz :
d M ^ q l
2qx0 _
dx
2
2
I
bu ye rd a * 0 = " ; shu kesim da M m a ksim a l q iy m a tg a ega b o ‘ la d i:
Q e p y u ra s in i q u ris h u ch u n x k e sim id a n chap to m o n d a y o tg a n k u c h la r
p ro e k s iy a la rin i y ig ‘ in d is in i o la m iz :
ql
Q x - R a - q x = — - q x
H o s il boMgan te n g la m a t o ‘ g ‘ ri c h iz iq n i ifo d a la y d i. U n in g g ra fig in i c h i-
zish u ch u n ik k ita n u q ta n in g k o o rd in a tin i to p is h k ifo y a :
x = 0
bo‘lsa,
Q
= — ;
2
x = I
bo‘lsa,
Q = ——
2
ql
Q e p yu ra si 7 .1 1 -rasm da b e rilg a n ;
Q
m a x = — .
A g a r M v a Q e p y u ra la ri taqqoslansa, M m a x boMgan ke sim d a Q = 0 ekan
lig in i k o 'ra m iz . B u n d a y h o i, y u q o rid a k o ‘ rib o ‘ tiIg a n , M ( x ) va Q (x ) o ra si
d a g i d iffe re n s ia l b o g M iq lik n in g n a tija s id ir.
D e m a k , agar b a lk a g a y o y iq k u c h q o ‘ y ilg a n boMsa, e g u v c h i m o m e n t
p a ra b o la q o n u n i, k o 'n d a la n g k u c h esa, t o ‘ g ‘ ri c h iz iq q o n u n i b o ‘ y ic h a
o 'z g a ra r ekan.
7 .5 -m is o l.
Dostları ilə paylaş: 
