20
- 1 0
-1 5
9 - rasm .
10- rasm .
2 3 . S h o s s e d a ik k i m o to ts ik lc h i b ir x il y o ‘n a lis h d a
h a ra k a tla n m o q d a . B irin ch i m o to tsik lc h in in g tezligi 10 m /s.
Ikkinchi m o to tsik lch i uni 20 m /s tezlik b ilan quvib y etm oqda.
V a q tn in g b o s h la n g ‘ic h m o m e n tid a u la r o ra sid a g i m asofa
200 m . M o to tsik lc h ila rn in g Y erga b o g ‘lan g an san o q siste m a-
sidagi h arak at tenglam alarini yozing. B unda vaqtning b o sh lan -
g ‘ich m o m e n tid a ikkinchi m ototsiklchi tu rg an jo y n i k o o rd in a
ta b o sh i d e b va m o to ts ik lc h ila rn in g h a ra k a t y o ‘n a lish in i
X o ‘q in in g m u sb at y o ‘n alishi d eb oling. Ikkala m o to tsik lc h i
n in g h a rak atlan ish grafigini b itta c h iz m a d a yasang (tavsiya
q ilin a d ig a n m a ssh ta b la r: 1 sm d a 100 m , 1 sm d a 5 s).
M o to tsik lc h ila rn in g u c h rash ish vaqti va jo y in i to p in g .
24 . A vto bu s va m o to tsik lc h i b ir-b irig a to m o n , m o s ra
v ish d a, 10 va 20 m /s tezlik b ila n h a ra k a tla n m o q d a . K uzatish
b o sh la n g a n p a y td a u la r o ra sid a g i m aso fa 600 m ga te n g
boMgan. A V q av to b u s h a ra k a tla n a y o tg a n to m o n g a y o ‘nalgan
va / = 0 d a av to b u sn in g vaziyati san o q b o sh i bilan m os tushadi
deb hisoblab, avtobus va m o to tsik lch i u c h u n x = x (/) ten g la-
m alarni yozing. Bu b o g la n ish la rn i b itta ch izm a d a ikkita grafik
k o ‘r in is h id a ta s v irla n g (ta v siy a q ilin a d ig a n m a s s h ta b la r:
1 sm d a 100 m ; 1 sm d a 10 s):
a)
av to b u s h a m d a m o to tsik lc h in in g u c h rash ish vaqti va
jo y in i; b) 10 s d an keyin u la r o rasidagi m asofani; d) avtobus
ko o rd in atasi 250 m b o ‘lgan n u q ta d a n o ‘tay o tg an d a m o to tsik l
ch i q ay e rd a b o ‘lganini; e) v aq tn in g qaysi m o m e n tla rid a u la r
orasidagi m asofa 300 m b o ‘lg an in i to p in g .
2 5 * . M o d d iy n u q ta n in g h a r a k a tla n is h te n g la m a la r i
y = l + 2 / v a x = 2 + / berilgan. у = y(x) trayektoriyaning tengla-
m asini y o zing va X O Y tek islik d a tray e k to riy a yasang. r = 0 da
n u q ta n in g v az iy atin i, h a ra k a t y o ‘n alish in i va tezligini k o ‘rsa-
ting.
2 6 * . S am o ly o t kuzatish b o sh lan g an p a y td a b o s h la n g ic h
k o o r d in a ta la r i x 0 = 0, y 0 = 400 m b o ‘lg an n u q ta d a b o ‘lib,
X O Y vertikal tekislikda go rizo n tg a 30° b u rc h a k ostida 100 m /s
tezlik b ila n tekis va to ‘g ‘ri h arak atlan g a n . K o o rd in a ta la rn in g
vaqtga bogMiqlik tenglam alari x = x(/), у = y(t) ni va trayektoriya
ten g lam asi y = X * ) n i yozing.
9
Do'stlaringiz bilan baham: |