Question

A bird is sitting on stretched telephone wires. If its weight is W then the additional tension produced by it in the wires will be

• A. T = W
• B. T>W
• C. T<W
• D. T = 0

Answer 1

Answer: (B)

T>W

Answer 2

For equilibrium

$2T\sin\theta = W$

$T = \frac{W}{2\sin\theta}$

$\mathbf{\theta}$ lies between 0 to 90° i.e. $\sin\theta < 1$

$\therefore$ T > W