1. The 6-m boom AB has a fixed end at A. A steel cable is stretched from the free end B of theboom to point C located on the vertical wall. If the tension in the cable is 2.5 kN, determine themoment about A due to the force exerted by the cable at B.Ans: M= 0î +7.89j+4.74kkN. m4 m2.4 mAВ6 m12

Answered: Image /qna-images/answer/4622824e-b591-43ee-a785-26672bef2de9.jpg

Answered: 1. The 6-m boom AB has a fixed end at…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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The walkway ABC of the footbridge is stiffened by adding the cable ADC and the short post of length L. If the tension in the cable is not to exceed 1870N, then what is the smallest value of L for which the 712N person can be supported at B? 712 N A C В L D 1.83 m 1.83 m
If the tension in cable DE is 455 N, determine the moments of this tensile force (as it acts at point D) about point O and about line OF. EQ 2.3 m Answers: BC=CD = 2.2 m MOF= 3.0 m Moi -1203.39 i 2.3 m 3.1 m 1.3 m i+ i N.m 1.7 m 39° j+ i k) N-m
The guy wires AB and AC are attached to the top of the transmission tower. The tension in cable AB is 9.6 kN. Determine the required tension T in cable AC such that the net effect of the two cables is a downward force at point A. Determine the magnitude R of this downward force. Assume a = 47 m, b = 54 m, c = 23 m, and d = 33 m. B. Answers: T= R= i Mi A KN KN
0.6 2. The uniform 18 — kg bar OA is held in a position shown by the smooth pin at O and the cable AB. Determine the tension T in the cable and the magnitude and direction of the external pin reaction at O. (Ans. T 99.5 N, O = 246 N, 70.3° CCW from x- axis) A B 1.2 m 60 1.5 m
The guy wires AB and AC are attached to the top of the transmission tower. The tension in cable AB is 7.2 kN. Determine the required tension T in cable AC such that the net effect of the two cables is a downward force at point A. Determine the magnitude R of this downward force. Assume a = 30 m, b = 38 m, c = 26 m, and d = 33 m. B) Answers: T = i kN %3D R = i kN
2. Question : For the given three bar support system, determine the internal forces at the point p, in bar ABCD and at the point p2 in bar BEF. F 400 N 4 m 1000 N E 2.5 m P2 4 m В P1 2 m 3 m 3 m 2 m
Determine the tension at AC. 2 m. 2 m. B cable C=60° w =30 kN bar 32.55 kN 25.35 kN 55.23 kN 52.53 kN
a) As shown in the image given, a 69-kg crate is supported at equilibrium. The angles alpha=112 degrees. beta=145 degrees and the V =64.3 degrees. The coordinates of point D are (-2.2, 5.6, 3.2)m, and the spring constant k=1170N/m. Determine the stretch in the spring, in m which must be rounded to 3 places after the decimal point. Take g=9.81m/s^2. b) As shown in the image given, a 63-kg crate is supported at equilibrium. The angles alpha=112 degrees. beta=145 degrees and the V =64.3 degrees. The coordinates of point D are (-2.4, 5.5, 3.7)m. Determine the tension force in cable AC, in N. Take g=9.81m/s^2. c) As shown in the image given, a 64-kg crate is supported at equilibrium. The angles alpha=112 degrees. beta=145 degrees and the V =64.3 degrees. The coordinates of point D are (-2.2, 5.4, 3.2)m. Determine the tension force in cable AD, in N. Take g=9.81m/s^2.
The guy wires AB and AC are attached to the top of the transmission tower. The tension in cable AB is 7.3 kN. Determine the required tension T in cable AC such that the net effect of the two cables is a downward force at point A. Determine the magnitude R of this downward force.Assume a = 41 m, b = 48 m, c = 29 m, and d = 35 m.
The 40-kg homogeneous plate is suspended from four wires. Determine the tension in wire D. 500: 40 kg 250 550 -550- 750 500 392.4 N 375 250 550 -550- 750 FBD Dimensions in mm 145.84 N 134.89 N 61.31 N O 150.3 N
Q2. Determine all forces acting on body A for the system shown in figure 2. Body A weighs 200 N and the cylinder B weighs 500 N. assume all the contact surfaces are smooth. 777TT ring 24 Cable 7 A r= 0.5 m 30 0.5 m B. 2 m 1 m 1 m 30
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