Concept explainers
A clothesline always sags a little, even if nothing hangs from it. Explain.
Answer to Problem 1CQ
Explanation of Solution
The clotheslines used for hanging clothes in our day-to-day life, sags little even there is nothing hanging on it even. The clotheslines have some mass concealed in it. This mass interacts with the gravitational pull or gravitational force offered by Earth in downward direction. Due to this downward component of force on the clothesline, the clothesline sags a little. This downward component of force is commonly known as weight of the clothesline.
Conclusion:
Therefore, the clotheslines sag little, even if nothing hangs from it due to the self weight of clothesline.
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