Register to reply

Static Tension Question

by r34racer01
Tags: static, tension
Share this thread:
r34racer01
#1
Sep10-09, 04:20 PM
P: 63
1. A 120 ft tower is being held by three cables in tension. Cable AO is in 1000
lb of tension. Find the tension in the other cables and the vertical force from
the tower if the whole system is at rest.








3. So using lots and lots of trig I was able to find most of the magnitudes, thetas, and phi's as you can see from the last 2 images. But now I'm lost from there. During office hrs. my prof. mentioned something about using unit vectors and then labeling the pts. A, B & C as coordinates A(-30,0,-20), b(-20,0,20), & c(40,0,10), but I don't see how those can help me. Any suggestions?
Phys.Org News Partner Science news on Phys.org
Physical constant is constant even in strong gravitational fields
Montreal VR headset team turns to crowdfunding for Totem
Researchers study vital 'on/off switches' that control when bacteria turn deadly
nvn
#2
Sep11-09, 12:56 AM
Sci Advisor
HW Helper
P: 2,124
Hi, r34racer01. The PF rules state we are not allowed to tell you how to approach or solve your homework problem. You must list relevant equations yourself, and show your calculations to determine the forces; and then someone might check your math.


Register to reply

Related Discussions
Static equilibrium: calculating force of tension Introductory Physics Homework 7
Getting the tension(Static equilibirum) Introductory Physics Homework 1
Using static friction to find tension Introductory Physics Homework 1
Static particle with tension Introductory Physics Homework 3
Rope Tension in Static Equilibrium Introductory Physics Homework 2