Given system is accelerated upwards with an acceleration g2 . If M is 10Kg and pulley and string mass 5kg . The net force acting on the system us :
Net force acting on the system is,
F=(M+m)(g+a)
=(10+5)(g+g2)
=452g
Two blocks of masses m1=2 kg and m2=4 kg hang over a massless pulley as shown in figure. A force F0 = 100N acting at the axis of the pulley accelerates the system upward. Then