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Serga [27]
3 years ago
15

Telephone and electrical lines are allowed to sag between poles so that the tension will not be too great when something hits or

sits on the line. Suppose that a line were stretched almost perfectly horizontally betweern two poles that are 30 m apart. If a 0.25-kilogram bird perches on the wire midway between the poles and the wire sags 1.0 cm, what would the tension in the wire be?
Physics
1 answer:
navik [9.2K]3 years ago
7 0

Answer:

Tension in the wire= 1837.5 N

Explanation:

The answer along with solution can be found in the image attached.

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Answer:

Given the data in question;

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now dipole pointing to the right;

               P→

_{-\theta } (-) ---------------->(+) _{+\theta }

               d

so let distance between the dipoles be d

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Also Let \Theta_{3} = 3 nC

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P = d\Theta

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3 nc                        0.33 m

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5 nC                       0.20 m      

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