Calculating Wave Pulse Travel Time with Clothesline Density

AI Thread Summary
To calculate the wave pulse travel time on a clothesline, the mass of the clothesline must be determined using its linear density, which is given as 6x10^-3 kg/m. The tension in the clothesline is 50N, and the wave travels at a phase velocity that can be calculated from the tension and linear density. The travel time for the wave pulse to go from the house to the tree and back can be derived using the formula for wave speed and the length of the clothesline. The discussion highlights the importance of understanding the distinction between linear density and volume density in these calculations. Ultimately, the wave pulse travel time can be computed once the necessary parameters are clarified.
daisyi
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I can't figure out how to find the mass of the clothesline, even though given the density, because the radius or crossectional area is not given. Any input on this would be appreciated.

A clothesline of length 10m is stretched between a house and a tree. The clothesline is under a tension of 50N and it has a density of 6x10^-3 kg/m. How long does a wave pulse take to travel from the house to the tree and back?

I have a couple of questions that use the density and they all allude me. Thanks!
 
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Note that you have been given a LINE DENSITY, not a volume density..
 
daisyi:

How much time do you think the wave will take? And why do the questions allude you? Post your solutions...

Cheers
Vivek
 
The wave travels at a velocity called the Phase Velocity. This velocity is responsible for covering the length of the string.
 

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