wo force couples and a concentrated 90 lb-ft couple on the beam. Assume the 90 lb-ft couple acts at the beam centerline and the distance 1.25 ft vertically between the 125 lb forces. Similar to the example presented in class, compute the resultant moment vector two different ways (the answers should be the same) A. Recognize force-couple pairs and use r x F between their lines of action, plus add in the couple-moment. B. Sum moments of all forces and moment couple about a point A

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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Two force couples and a concentrated 90 lb-ft couple on the beam. Assume the 90 lb-ft couple acts at the beam centerline and the distance 1.25 ft vertically between the 125 lb forces. Similar to the example presented in class, compute the resultant moment vector two different ways (the answers should be the same)

A. Recognize force-couple pairs and use r x F between their lines of action, plus add in the couple-moment.

B. Sum moments of all forces and moment couple about a point A

 

Please show/provide all written work so I can understand. Thank you!

90 lb-ft
2 ft
2.5 ft
200 lb
200 lb
1.2 ft
1.25 ft
125 lb
30°
125 lb
30°
Transcribed Image Text:90 lb-ft 2 ft 2.5 ft 200 lb 200 lb 1.2 ft 1.25 ft 125 lb 30° 125 lb 30°
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