Jism n in g b u rilg a n m o m e n td a g i b u rch a k
tezligini to p ish u c h u n
(45.1) fo rm u la d a n
At nolga intilganda lim it olam iz:
Дер
_
dv?
dv?
. . . ..
I K W
*
yokl “ ' - s r ' " ’ -
(412)
D em ak, jism n ing bu rchak tezligi uning burilish b u rch ag id an vaqt
b o ‘yicha o lin g a n birinchi tartib li hosilasiga teng. U ning o ‘lchov b ir
ligi ra d /s yoki 1/s dir. Jism ning b u rch a k tezligi burilish burchagining
q a n c h a lik te z o ‘zg a rish in i va bu o ‘zg arish y o ‘n a lish in i an iq lay d i.
Shuning u c h u n b u rc h a k tezligi v ek to r sifatida ifodalanadi.
M azkur
vektorni jism aylanish o ‘qining ixtiyoriy nuqtasiga q o ‘yam iz va yo ‘-
n alishini sh u n d a y tanlaym izki, u n in g u ch id a n
turib q aralg an d a jism
d oim o soat strelkasiga teskari y o ‘nalishda aylansin (82-rasm ).
