Calculating Tension in Cables for 17.0 kg Speaker

  • Thread starter kappcity06
  • Start date
  • Tags
    Tension
In summary, a 17.0 kg loudspeaker is suspended 1.80 m below the ceiling by two cables of equal length (3.30 m) at equal angles with the ceiling. The tension in each cable can be found by splitting the tension forces into horizontal and vertical components and using the triangle formed by the two tension forces and the weight of the speaker.
  • #1
kappcity06
90
0
A loudspeaker of mass 17.0 kg is suspended a distance of h = 1.80 m below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 3.30 m.

What is the tension in each of the cables?

Tried mg sintheta^2+mgcostheat^2=c^2 but no dice.

Anyone know anything?

thanks
 
Physics news on Phys.org
  • #2
The tension forces point along the wires. Call their magnitude T and split them into horizontal and vertical components. The horizontal components cancel and the sum of the vertical components should cancel the mg force on the speaker.
 
  • #3
The two (similar in magnitude tensions) and the weight form a triangle. If theta is the angle between the cables and the ceiling then the angle between the two tension vectors in the triangle is two times theta.
 

Related to Calculating Tension in Cables for 17.0 kg Speaker

1. How do you calculate the tension in cables for a 17.0 kg speaker?

To calculate the tension in cables for a 17.0 kg speaker, you will need to use the formula T = mg, where T is the tension in the cables, m is the mass of the speaker (17.0 kg), and g is the acceleration due to gravity (9.8 m/s^2). This will give you the tension in Newtons (N).

2. What is the purpose of calculating tension in cables for a 17.0 kg speaker?

Calculating the tension in cables for a 17.0 kg speaker is important because it helps determine the strength and stability of the cables. Knowing the tension will also ensure that the cables can support the weight of the speaker without breaking or causing any damage.

3. How does the weight of the speaker affect the tension in the cables?

The weight of the speaker directly affects the tension in the cables. The heavier the speaker, the higher the tension in the cables will be. This is because the weight of the speaker pulls down on the cables, causing them to stretch and increase in tension.

4. Can tension in cables be too high for a 17.0 kg speaker?

Yes, tension in cables can be too high for a 17.0 kg speaker. If the tension is too high, it can cause the cables to snap or damage the speaker. It is important to calculate the tension and ensure it is within the safe range for the speaker's weight.

5. Are there any other factors that can affect the tension in cables for a 17.0 kg speaker?

There are other factors that can affect the tension in cables for a 17.0 kg speaker, such as the length and thickness of the cables, the type of material used for the cables, and the angle at which the cables are attached to the speaker. These factors should also be taken into consideration when calculating the tension in cables.

Similar threads

Replies
13
Views
316
  • Introductory Physics Homework Help
Replies
19
Views
971
  • Introductory Physics Homework Help
Replies
7
Views
2K
  • Introductory Physics Homework Help
Replies
8
Views
810
  • Introductory Physics Homework Help
2
Replies
63
Views
2K
  • Introductory Physics Homework Help
Replies
19
Views
3K
  • Introductory Physics Homework Help
Replies
10
Views
4K
  • Introductory Physics Homework Help
Replies
2
Views
1K
  • Introductory Physics Homework Help
Replies
31
Views
4K
  • Introductory Physics Homework Help
Replies
7
Views
2K
Back
Top