In the situation shown in fig., all the strings are light and inextensible and pullies are light. There is no friction at any surface and all blocks are of cuboidal shape. A horizontal force of magnitude F si applied to right most free end of string in both cases shown in the figure. At the instant shown, the tension in all strings are non-zero. Let the magnitudes of acceleration of large blocks (of mass M) in fig. be `a_(1) and a_(2)` respectively. Then,

Options

A. `a_(1)=a_(2)!=0`
B. `a_(1)=a_(2)=0`
C. `a_(1)gta_(2)`
D. `a_(1) lt a_(2)`

Answer

B

Explanation

From FBD, it is obvious that net force on each block is zero in horizontal direction. So
`a_(1)=a_(2)=0`