Two blocks of mass 4kg and 6kg are connected by a string as shown in the figure . They are initially at rest on the floor . Calculate their acceleration when a force of (a) 50N (b) 100N is applied on the pulley.

Two blocks of mass 4kg and 6kg are connected by a string as shown in t

1.	Two blocks of mass 4kg and 6kg are connected by a string as shown in the figure . They are initially at rest on the floor . Calculate their acceleration when a force of (a) 50N (b) 100N is applied on the pulley.
Answer» Solution :Case (i): FORCE on 6kg and 4kg object` =F/2=25N`. The APPLIED froce in each block is less than the WEIGHT of each block . So the blocks will not move Case (ii): Force on each block `=(100)/2=50N`. The 6kg block will not move because applied force is less than its weight . On 4kg mass Resutant force = mass X acceleration `50-40=a ,10=4a ,a=2.5 m//s^(2)`