Replace the loading system by an equivalent resultant force and couple moment

Replace the loading system by an equivalent
resultant force and couple moment acting at point O Get the book: amzn.to/2h3hcFq

[@elliotchauke558]

a uniform rod AB of weight 100N. The rod can rotate
freely around A, by means of a pin. However, it is held in equilibrium, at an angle of 15
with the upward vertical, by means of a rope that is tied at B and forms an angle of 30
with the rod and is in the same vertical plane as the rod.

[@neonfire.2883]

this guy carries engr045

[@hemanth2094]

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[@thisisblackmesa]

amazing

[@timwarburton939]

Thanks

[@Isurugajanayake]

🙏

[@ThePurpleFish12]

the moment F1 = 30i, so shouldn't the sum of the moments F1 and F2 be -30i -100j -120k?

[@lucasdent8889]

Moment of F2 is , moment of F1 is , and the given moment M_c is . therefore the correct answer for total moment is . Which is what he had.