Concept explainers
The spring constant of the spider webs.
Answer to Problem 72GP
Solution:
Explanation of Solution
Given
The initial speed of the train is:
The mass of the train is
The final speed of the train is zero.
His web stretches by 500 m, so
Formula used
The kinetic energy of the train is
Where, m is the mass and vis the speed.
The spring potential energy of the web is
Here, k is the spring constant and x is the extension.
Calculations
Since the kinetic energy is equal to the spring potential energy,
Conclusion:
The spring constant of the spider web can be calculated by equating the spring potential energy with the kinetic energy of the train.
Chapter 6 Solutions
Physics: Principles with Applications
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