What is M_F_x, the contribution to the moment about point O made by the x compon

Question

What is M_F_x, the contribution to the moment about point O made by the x component of the force F at point A? What is M_F_y, the contribution to the moment about point O made by the y component of the force F at point A? What is the total moment M due to the force F about point O? Assume that moments acting counterclockwise about point O are positive whereas moments acting clockwise are negative. To apply the principle of moments and the principle of transmissibility. As shown, a rope is attached to a l = 16.0ft high shed that is to be relocated. A man pulls on the end of the rope at point A, the rope is attached to the shed at point B. (Figure 1) As the man pulls on the rope, it creates an angle 6 with the horizontal. The end of the rope is located at x = 14.0ft from the shed and y = 6.00ft off the ground. The man pulls on the rope with a force of magnitude F = 65.01b. This question will be shown after you complete previous question(s). This question will be shown after you complete previous question(s).

Explanation / Answer

tan@ = (16 - 6) / 14 = 5/7

@ = 35.54 deg

F = 65 ( - cos35.54i - sin35.54j)

F = -52.89i - 37.78 j lb

moment = r x F

due to Fx

Mfx = (6 - 16)j x ( - 52.89i ) = 528.9 lb-ft

due to Fy

Mfy = (-14i) x (37.78 j) = 528.92 lbft

M = Mfx + Mfy = 1057.84 lb-ft

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.