3) The rigid horizontal bar AB is supported by three vertical rods as shown in the figure and carries the load of 110 kN. The system is stress free before the load is applied. After the load was applied, the temperature of all wires is raised by 20°C. Use a = 12x10-6/°C for steel, a = 18x10-6/°C for copper and a = 20x10-6/°C for brass. Neglecting the weight of the bar AB, determine the location of the 110 kN force in order that AB remains horizontal. steel bar: A=130mm brass bar: A=325mm? copper bar: A=195mm? A B 110 kN 3.00m 2.00m 1.80m 1.20m 1.50m

3) The rigid horizontal bar AB is supported by three vertical rods as shown in the figure and carries the load of 110 kN. The system is stress free before the load is applied. After the load was applied, the temperature of all wires is raised by 20°C. Use a = 12x10-6/°C for steel, a = 18x10-6/°C for copper and a = 20x10-6/°C for brass. Neglecting the weight of the bar AB, determine the location of the 110 kN force in order that AB remains horizontal. steel bar: A=130mm brass bar: A=325mm? copper bar: A=195mm? A B 110 kN 3.00m 2.00m 1.80m 1.20m 1.50m

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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Question

3) The rigid horizontal bar AB is supported by three vertical rods as
shown in the figure and carries the load of 110 kN. The system is
stress free before the load is applied. After the load was applied,
the temperature of all wires is raised by 20°C. Use a = 12x10-6/°C for
steel, a = 18x10-6/°C for copper and a = 20x10-6/°C for brass. Neglecting
the weight of the bar AB, determine the location of the 110 kN force in
order that AB remains horizontal.
steel bar:
A=130mm?
brass bar:
A=325mm
copper bar:
A=195mm?
A
IB
110 kN
3.00m
2.00m
1.80m
1.20m
1.50m

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