2 47
-
.
↑
N
FB
m
Fr = Fi + Fr -2(f)(E) cos(009
Y
· FTOON
↑
FB
=
GOON
Fr
=
Fr
=
700+600 2(700)(600)cos(0)
-
300
20
°
= Fr 839 1278N 0 14 7621°
=
=
.
,
.
<W
=
si
= (Finso
from ty
f= d
2 III
839 1278
.
X
-
30 = 14 7621
.
-
.
2
A = 300cs304 + 500-300 sinsok mm
1
·
B = oit 150 + 250kmm
B
AB = -250 81y-350Y + 400
.
Y
lABI = 154 815350" + 2002
.
Yar
·
A
=
-254 -3504 +T00
.
SP 6)
X
.
F 30 7250 8/1
=
·
-
.
350 + 4005) N
=
-
13
2417 75 + 20 3 TN
.
.
.
541 6
.
Length 541 61 ,
.
F
=
-13
-17 75 + 20 3 TN
.
.
.