The distance between two telephone poles is 36 m. when a 1.99 kg bird lands on the telephone wire midway between the poles, the wire sags 0.118 m. the acceleration of gravity is 9.8 m/s 2 . how much tension in the wire does the bird produce? ignore the weight of the wire. answer in units of n.

1501.86 N

Explanation:

Given

Distance between Poles=36 m

Mass of bird (m)=1.99 kg

wire sag =0.118 m

angle made by wire with horizontal is given by

Let be the tensions in the wires

On resolving

thus

and

one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.