Question

Joshi sir comment
In first case F = 2T = 150so T = 75 newton, Now in second case system is free to moveacceleration of the system a = F/20for 10 kg rod F-2T = 10a = 10(F/20) = F/2⇒F-(F/2)=2T ⇒F=4T = 300 newton
In first case F = 2T = 150so T = 75 newton, Now in second case system is free to moveacceleration of the system a = F/20for 10 kg rod F-2T = 10a = 10(F/20) = F/2⇒F-(F/2)=2T ⇒F=4T = 300 newton