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A weightless rectangular bar BDC is loaded as shown below. There is a smooth pin at point C, a 100 N force at point D and a cable at point B. The bar and all forces are in the plane of the page (2D case). A F = 100 N %3D 2 m 50° В 2 m 2 m 4 m

A weightless rectangular bar BDC is loaded as shown below. There is a smooth pin at point C, a 100 N force at point D and a cable at point B. The bar and all forces are in the plane of the page (2D case). A F = 100 N %3D 2 m 50° В 2 m 2 m 4 m

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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A weightless rectangular bar BDC is loaded as shown below. There is a smooth pin at point C, a 100 N force at point D and a cable at point B. The bar and all forces are in the plane of the page (2D case). A F = 100 N 2 m 50° C 2 m 2 m 4 m a) Write the 100 N force using polar vector representation: F = |F| N@ angle 0 CCW from +x to the right. Calculate the angle theta in degrees. b) Calculate the moment of the 100 N force about point C. Give your answer in N-m (newton- meter). c) What should the direction of the 100 N force be to produce a zero moment about point B? Calculate and report the smallest angle in degrees CCW from +x to the right (angle in standard position). d) What should the direction of the 100 N force be to produce a zero moment about point A? Calculate and report the smallest angle in degrees CCW from +x to the right (angle in standard position).
Transcribed Image Text:A weightless rectangular bar BDC is loaded as shown below. There is a smooth pin at point C, a 100 N force at point D and a cable at point B. The bar and all forces are in the plane of the page (2D case). A F = 100 N 2 m 50° C 2 m 2 m 4 m a) Write the 100 N force using polar vector representation: F = |F| N@ angle 0 CCW from +x to the right. Calculate the angle theta in degrees. b) Calculate the moment of the 100 N force about point C. Give your answer in N-m (newton- meter). c) What should the direction of the 100 N force be to produce a zero moment about point B? Calculate and report the smallest angle in degrees CCW from +x to the right (angle in standard position). d) What should the direction of the 100 N force be to produce a zero moment about point A? Calculate and report the smallest angle in degrees CCW from +x to the right (angle in standard position).
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