math
posted by al .
A horizontal clothesline is tied between 2 poles, 14 meters apart.
When a mass of 4 kilograms is tied to the middle of the clothesline, it sags a distance of 5 meters.
What is the magnitude of the tension on the ends of the clothesline? Use gravitational acceleration of for this problem as that is what webwork is grading based on.

Draw a free body diagram and set the net vertical force equal to zero. The answer will be a multiple of M g. You will need to compute the angle that the sides of the clothesline devate from horizontal.
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