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anonymous
 4 years ago
The distance between two telephone poles is d = 49.5 m. When a 1.50kg bird lands on the telephone wire midway between the poles, the wire sags h = 0.210 m.
(a) Draw a freebody diagram of the bird.
(b) How much tension does the bird produce in the wire? Ignore the weight of the wire.
anonymous
 4 years ago
The distance between two telephone poles is d = 49.5 m. When a 1.50kg bird lands on the telephone wire midway between the poles, the wire sags h = 0.210 m. (a) Draw a freebody diagram of the bird. (b) How much tension does the bird produce in the wire? Ignore the weight of the wire.

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TuringTest
 4 years ago
Best ResponseYou've already chosen the best response.2Here's the freebody:dw:1329359401119:dwby symmetry both tensions will have the same magnitude. The vertical components of the tensions cancel the force of gravity so the bird is at rest...

TuringTest
 4 years ago
Best ResponseYou've already chosen the best response.2To find the tension in the wires we note that the vertical components of the tension due to each wire sum to the force of gravity.dw:1329359587825:dw\[\sum F_y=T_yF_g=2T\sin\thetamg=0\]solve for tension T.

TuringTest
 4 years ago
Best ResponseYou've already chosen the best response.2We have a right triangle:dw:1329363602444:dwsince you know two sides of the triangle you can use an inverse trig function to find theta

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Thanks. Can you help me with another problem?

TuringTest
 4 years ago
Best ResponseYou've already chosen the best response.2sorry, break time I'll check back later, just post more in the physics section and I'll look for them later
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