form u la bilan an iqlanad i
(12.3-rasm)
Fyu= ( R , + R 2)(fM± i ) , k N
(1 2 .4 2 )
bu yerd a
R ,- traktorni yu rish u sk u n a sig a tu p roq n in g norm al
rea k siy a q arsh ilik k u ch i, k N
(12.3- rasmdan,
I Z = 0 , shart orqali
to p ilad i); R 2- ish j ih o z ig a y o rd a m ch i c h a n g ‘i y o k i g ‘ildirak ta y a n ch in in g
tuproqqa b eradigan norm al ta ’sir k uchi, k N
(12.3-rasm dan,
S M A = 0 ,
shart orqali an iqlanad i),
IZ = 0 b o ‘ Iganda,
R, = (m T + mish)g + ZRv + Rov- R 2, k N
ш А=0 boMganda,
*7
bu yerd a
SR V- urunm a v a n orm al q a zish g a ta ’sir q ilu v ch i
k u ch iarn in g vertikal o ‘q ig a p roek siyasi:
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