Asked by Anonymous
A bird is resting on a phone wire between two poles that are 30 m apart. The bird is exactly midway between the two poles. Because of the weight of the bird, the wire sags by 50 cm. The tension in the wire is 70 N
Answers
Answered by
bobpursley
So what is the question? All you haven't been given is the weight of the bird.
Figure the angle at the center (vertical to wire) tanTheta=15/.5
Now, if tension is 70, and each side supports half the weight of the bird
then cosTheta=weight/2 / tension
and you solve for weight.
Figure the angle at the center (vertical to wire) tanTheta=15/.5
Now, if tension is 70, and each side supports half the weight of the bird
then cosTheta=weight/2 / tension
and you solve for weight.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.