4 m- B, 60° Af 60 4 m. 4 m Probs. 6–16/17
Residential Construction Academy: House Wiring (MindTap Course List)
5th Edition
ISBN:9781337402415
Author:Gregory W Fletcher
Publisher:Gregory W Fletcher
Chapter17: Lighting Fixture Installation
Section: Chapter Questions
Problem 6RQ
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If the maximum force that any member can support is 8 kN in tension and 6 kN in compression, determine the maximum force P that can be supported at joint D.
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Follow-up Question
Why is the answer 5.916 instead of 6.928? Because shouldn't the maximum force be equal to the maximum value of P?
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Follow-up Question
Why do you have to solve for the other joints? Can't you just do Sum of Forces in Y direction for point D, and then sub in the 8 and 6, and then see which one is the smaller value to get the correct answer?
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