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Forces A, B, Cand D are acting on a horizontal bar which produces a resultant of 300 lb acting 4 ft from the left end of the bar. Force A has a magnitude of 100 lb acting downward at the left end of the bar and force D has a magnitude of 200 lb acting upward at right end of the bar. If force B acting upward is 2 ft away from force A and force C acting downward is 2 ft away from force D, what are the magnitudes and positions of forces B and C if the total length of the bar is only 7 ft.

Forces A, B, Cand D are acting on a horizontal bar which produces a resultant of 300 lb acting 4 ft from the left end of the bar. Force A has a magnitude of 100 lb acting downward at the left end of the bar and force D has a magnitude of 200 lb acting upward at right end of the bar. If force B acting upward is 2 ft away from force A and force C acting downward is 2 ft away from force D, what are the magnitudes and positions of forces B and C if the total length of the bar is only 7 ft.

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
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3. Forces A, B, C and D are acting on a horizontal bar which produces a resultant of 300 lb acting 4 ft from the left end of the bar. Force A has a magnitude of 100 lb acting downward at the left end of the bar and force D has a magnitude of 200 lb acting upward at right end of the bar. If force B acting upward is 2 ft away from force A and force C acting downward is 2 ft away from force D, what are the magnitudes and positions of forces B and C if the total length of the bar is only 7 ft.
Transcribed Image Text:3. Forces A, B, C and D are acting on a horizontal bar which produces a resultant of 300 lb acting 4 ft from the left end of the bar. Force A has a magnitude of 100 lb acting downward at the left end of the bar and force D has a magnitude of 200 lb acting upward at right end of the bar. If force B acting upward is 2 ft away from force A and force C acting downward is 2 ft away from force D, what are the magnitudes and positions of forces B and C if the total length of the bar is only 7 ft.
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