What magnitude of tension is in the wire?

[hunginc]

a 4kg magpie flies towards a very tight plastic wire on a clothes line. the wire is perfectly horizontal and is stretched between poles 4m apart. the magpie lands on the center of the wire, depressing it by a vertical distance of 4.0cm. what magnitude of tension is in the wire?

 

[LawrenceC]

Without you making an attempt at the problem, we cannot help you. Check the format for posing problems on this site.

 

[netgypsy]

Forget about the bird flying and draw your forces when the bird is actually at rest on the line.