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b. The strong room where AIT exam question papers are kept is made up of rectangular metal bars. One bar has a width of 10 mm and would be able to withstand a maximum compressive stress of 20 MPa. i. Prove that, the minimum breadth of this bar can withstand a burdened with a force of 3 KN. ii. If the bar in question is 2 m long and decreases in length by 0.25 mm when a force is applied, then show that a percentage strain can be obtained. iii. What would be its Modulus of Elasticity, E?

b. The strong room where AIT exam question papers are kept is made up of rectangular metal bars. One bar has a width of 10 mm and would be able to withstand a maximum compressive stress of 20 MPa. i. Prove that, the minimum breadth of this bar can withstand a burdened with a force of 3 KN. ii. If the bar in question is 2 m long and decreases in length by 0.25 mm when a force is applied, then show that a percentage strain can be obtained. iii. What would be its Modulus of Elasticity, E?

Elements Of Electromagnetics
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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b. The strong room where AIT exam question papers are kept is made up of rectangular metal bars. One bar has a width of 10 mm and would be able to withstand a maximum compressive stress of 20 MPa. i. Prove that, the minimum breadth of this bar can withstand a burdened with a force of 3 KN. ii. If the bar in question is 2 m long and decreases in length by 0.25 mm when a force is applied, then show that a percentage strain can be obtained. iii. What would be its Modulus of Elasticity, E?
Transcribed Image Text:b. The strong room where AIT exam question papers are kept is made up of rectangular metal bars. One bar has a width of 10 mm and would be able to withstand a maximum compressive stress of 20 MPa. i. Prove that, the minimum breadth of this bar can withstand a burdened with a force of 3 KN. ii. If the bar in question is 2 m long and decreases in length by 0.25 mm when a force is applied, then show that a percentage strain can be obtained. iii. What would be its Modulus of Elasticity, E?
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