Two blocks of masses 3 kg and 5 kg are connected by a metal wire going over a smooth pulley. The breaking stress of the metal is 24/(π) × 10^2 Nm^-2.…

Two blocks of masses $\displaystyle 3$ kg and $\displaystyle 5$ kg are connected by a metal wire going over a smooth pulley. The breaking stress of the metal is $\displaystyle \frac{24}{\pi} \times 10^2 \mathrm{Nm}^{-2}$. What is the minimum radius of the wire ? (take $\displaystyle \mathrm{g}=10 \mathrm{~ms}^{-2}$ )