Test : …………………………………………………………..………….
xx
yy
,
R=3 . ,
0,5kg,
=1m
r=1 . F=6 ,
, , =2 . i)
, .
ii)
t1
1=
)
2
:
.
)
,
)
.
F,
iii)
t1
. F
.
; : 5+(3+4+4)+4=20
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