Just 3-20 *3-20. A vertical force P = 10 lb is applied to the ends of the 2-ft cord AB and spring AC. If thespring has an unstretched length of 2 ft, determine the angle 8 for equilibrium. Takek = 15 lb lb/ft3-21. Determine the unstretched length of spring AC if a force P = 80 lb causes the angle8 = 60° for equilibrium. Cord AB is 2 ft long. Take k = 50 lb lb/ft:Probs. 3-20/212 ft2 ft-

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Answered: *3-20. A vertical force P= 10 lb is…

*3-20. A vertical force P= 10 lb is applied to the ends of the 2-ft cord AB and spring AC. If the spring has an unstretched length of 2 ft, determine the angle 8 for equilibrium. Take 15 lb lb/ft

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

Just 3-20

*3-20. A vertical force P = 10 lb is applied to the ends of the 2-ft cord AB and spring AC. If the
spring has an unstretched length of 2 ft, determine the angle 8 for equilibrium. Take
k = 15 lb lb/ft
3-21. Determine the unstretched length of spring AC if a force P = 80 lb causes the angle
8 = 60° for equilibrium. Cord AB is 2 ft long. Take k = 50 lb lb/ft:
Probs. 3-20/21
2 ft
2 ft-

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