Getting the tension(Static equilibirum)

by honestliar
Tags: equilibirum, tensionstatic
honestliar is offline
Aug9-09, 12:40 AM
P: 6
1. The problem statement, all variables and given/known data

A system cord is knotted at point 0. Determine the angle of the force exerted at cord c If the mass of the hanging block is A=850g(8.34N) the tension in B=42N (the angle of Cord B is 25 degrees from the X-axis)

The Image:

2. Relevant equations

a/sinA = b/sinB = c/sinC

3. The attempt at a solution

8.43/sinA = 42/sinB = c/sin65

so to get the value of c I need to use the cosine law w/c gives me the answer of c=34.544

If i substitute this value in getting the value of sinA it will be sinA=(34.544)(8.34)/Sin65 w/c gives me a wrong answer.

Help please
Phys.Org News Partner Science news on
Simplicity is key to co-operative robots
Chemical vapor deposition used to grow atomic layer materials on top of each other
Earliest ancestor of land herbivores discovered
Winzer is offline
Aug9-09, 01:36 AM
P: 605
How about starting off with the sum of the forces for each component?

Register to reply

Related Discussions
Using static friction to find tension Introductory Physics Homework 1
Static particle with tension Introductory Physics Homework 3
Can someone help me with Equilibirum? Introductory Physics Homework 8
Equilibirum Introductory Physics Homework 1
Rope Tension in Static Equilibrium Introductory Physics Homework 2