5-81
= 45°
FX
F = 260 N FY
MB
F = 260 N
FX = (260 N)(cos 45°)
FX = 183.4 N = FY
Moment :
A
B
C
183.4 N
183.4 N
B
5-82
0.40 in
26 lb
FX = (30 lb)(cos 30°) = 26.0 lb
FY = (30 lb)(sin 30°) = 15 lb
Segment B-C is in tension with
a force of 26 lb.
A
B
C
5-83
27 N 150 N
127N
150 N
40 mm
150 N
MA = (150 N)(40 mm) = 6000 N mm
FY
Angle = 45° F
MD = FX(26 mm) = (127 N)(26 mm)
MD = 3310 N mm
F = 180 lb
FX = (180 lb)(cos 45°) = 127 N
A
B C
D
A
5-84
169 lb
52 lb MA
117 lb
117 lb 42.8 lb
16 in
FY F Angle = 20°
FX
169 lb
61.6 lb
MD
F = 180 lb
FX = (180 lb)(cos 20°) = 169 lb
FY = (180 lb)(sin 20°) = 61.6 lb
MD = (169 lb)(14 in) = 2366 lb in
A
B
C
D
A
D
2.2 m
5-93
5-95
5-97
5-99
5-101
5-103
5-104
5-105