A horizontal weightless rod of length \( 3 l \) is suspended on two vertical strings. Two loads ...

A horizontal weightless rod of length \( 3 l \) is suspended on two vertical strings. Two loads of mass \( m_{1} \) and \( m_{2} \) are in equilibrium at equal distances from each other and from the ends of the strings (Fig. 29).
Fig. 29
Determine the tension \( T \) of the left string at the instant when the right string snaps.