# Solving Tension on Wires Homework

• Messiah19
In summary, the problem involves a bird feeder hanging from a vertical wire connected to two upper wires attached to a horizontal support. By considering forces and using the condition for equilibrium, we can calculate the tension in the wire AB at an angle of 60 degrees to the horizontal. The correct answer is not 84.6N and further calculations need to be done to find the correct answer.
Messiah19

## Homework Statement

A 75N bird feeder hangs from a vertical wire that is connected to two other upper wires that are attached to a horizontal support, as shown in the figure

On a copy of the diagram, draw arrows to indicate the forces present in the wires

By considering forces A, calculate the tension in the wire AB, which rests at an angle of 60 degrees to the horizontal.

## Homework Equations

No equations given

## The Attempt at a Solution

i did this

75= Ab Sin 60

but i don't think the answer is good.

What about the tension in the other wire? You can't ignore it.

84.6N is correct? I too am not sure how to do it even though the working must be something easy T.T

chrysanthemes said:
84.6N is correct? I too am not sure how to do it even though the working must be something easy.
No, it's not correct. To find the correct answer, apply the conditions for equilibrium.

## 1. How do I determine the tension on a wire?

To determine the tension on a wire, you need to know the weight of the object the wire is supporting and the angle at which the wire is suspended. Using trigonometric functions, you can calculate the horizontal and vertical components of the tension. The magnitude of the tension can then be found using the Pythagorean theorem.

## 2. What factors affect the tension on a wire?

The tension on a wire is affected by the weight of the object it is supporting, the angle at which it is suspended, and the properties of the wire such as its material and thickness. Additionally, external factors such as wind or vibrations can also affect the tension on a wire.

## 3. How do I solve for multiple wires with different tensions?

If you have multiple wires with different tensions, you can use the principle of equilibrium to solve for the unknown tensions. This involves setting up equations for the horizontal and vertical forces acting on the object and solving for the tensions using algebraic methods.

## 4. Can I use the same method to solve for tension on a rope?

Yes, the same principles apply when solving for tension on a rope. However, ropes are often more flexible and have different properties than wires, so additional factors may need to be considered in the calculations.

## 5. How do I check my answer for tension on wires homework?

You can check your answer by plugging it back into the original equations and ensuring that it satisfies all the given conditions. You can also use online calculators or consult with a teacher or tutor to verify your solution.

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