If a is the minimum acceleration then,Tension in the rope \( = m(g - a)\) = Breaking strength
\(⇒\) \(m(g - a) = \frac{2}{3}mg\)
\(⇒\) \(a = g - \frac{{2g}}{3} = \frac{g}{3}\)
[$\sin \left(35^{\circ}\right)=0.573, \cos \left(35^{\circ}\right)=0.819$ $\left.\sin \left(110^{\circ}\right)=0.939, \cos \left(110^{\circ}\right)=-0.342\right]$