   Chapter 13, Problem 59P

Chapter
Section
Textbook Problem

A 2.65-kg power line running between two towers has a length of 38.0 m and is under a tension of 12.5 N. (a) What is the speed of a transverse pulse set up on the line? (b) If the tension in the line was unknown, describe a procedure a worker on the ground might use to estimate the tension.

(a)

To determine
The speed of the transverse pulses set up on the line.

Explanation

Given info: The mass of the power line is 2.65kg . The length of the power line is 38.0m . The tension on the line is 12.5N .

The wave speed in a stretched string is given as,

v=Fμ (I)

• v is the wave speed
• F is the tension in the string
• μ is the mass of the string per unit length or the linear density of the string

The linear density of the string can be defined as,

μ=mL (II)

• μ is the linear density of the string
• m is the mass of the string
• L is the length of the string

Substituting (II) on (I),

v=F

(b)

To determine
A procedure to estimate the tension on the power line from ground.

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Find more solutions based on key concepts 