Question

A bird sits at rest in the middle of a wire. The wire slopes upward at 5* from the horizontal on either side of the bird. If the wire on both sides of the bird is experiencing a tension force of 106 N, then what is the mass of the bird?

Answer 1

force up from left wire = 106 sin 5
force up from right wire also 106 sin 5
total force up = 212 sin 5

= weight down = m g = 9.81 m

m = (212/9.81)sin 5