^^ question 1 vv question 2 A transmission tower is held by three guy wires anch

Question

^^ question 1 vv question 2 A transmission tower is held by three guy wires anchored by bolts at B, C, and D. If the tension in wire AB is 525 lb, determine the components of the force exerted by the wire on the bolt at B. Fig. P2.85 and P2.86 CD, (b) the angles theta x, theta y, and theta z that the force exerted at C forms with the coordinate axes. The end of the coaxial cable AE is attached to the pole AB, which is strengthened by the guy wires AC and AD. Knowing that the tension in wire AC is 120 lb, determine (a) the components of the force exerted by this wire on the pole, (b) the angles theta x, theta y, and theta z that the force forms with the coordinate axes. Having trouble with the setup, wanna check my answers., thanks! Fig. P2.77 and P2.78

Explanation / Answer

2.85-2.86 tension in AB is 525lbs so force on B is also 525lbs nowthe components are simple trig, AB in vector form is , and knowing that you can find length ratios, ex: xdirection F_bx = 525*(20/sqrt(100^2+20^2+25^2)) now apply that a bunch of times and you got your answers (note: forz direction it will be negative) notice i chose 20 for the xcomponent direction and (x^2+y^2+z^2) = length 2.77) same method as above to solve for the components. Theangle is found using the formula AC* = |A|*cos(theta)where theta is your angle between the object and the x coordinateaxis. vector i = ; j = < 0 , 1 , 0> andk = < 0 , 0 , 1> and AC is the vector AC in coordinateform and * is the dot product

Related Questions

Navigate

• Browse (All)
• Browse #
• Subjects

---

---

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