2. 4.19 Compute all reactions at the base A of the traffic light standard, given that giao the tension in the cable BC is (a)T = 544 lb; and (b) T 0. The weight of the t ni noieat or standard is negligible compared with the 320-lb weight of the traffic light. -8 ft 4 ft B B. 320 lb 320 lb 15 ft A 10 ft %3D A, 10 ft FBD 000
2. 4.19 Compute all reactions at the base A of the traffic light standard, given that giao the tension in the cable BC is (a)T = 544 lb; and (b) T 0. The weight of the t ni noieat or standard is negligible compared with the 320-lb weight of the traffic light. -8 ft 4 ft B B. 320 lb 320 lb 15 ft A 10 ft %3D A, 10 ft FBD 000
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Transcribed Image Text:2. 4.19 Compute all reactions at the base A of the traffic light standard, given that s
the tension in the cable BC is (a) T = 544 lb; and (b) T =0. The weight of the ni noiat l
standard is negligible compared with the 320-lb weight of the traffic light.
-8 ft
4 ft
B,
320 lb
320 lb
15 ft
10 ft
-10 ft-
FBD
Transcribed Image Text:1. 4.16 The table lamp consists of two uniform arms, each weighing 0.8 lb. and a oldet of A
2-lb bulb fixture. If = 16°, calculate the couple CA that must be supplied by the h diad di-S
friction in joint A.
%3D
4 in.
-14 in.-
10 in.
20 in.
2 lb
0.8 lb
0.8 lb
16
2 lb
0.8 lb
A
A
FBD
20 in.
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