Two blocks A and B are pushed against the wall with the force F. The wall is smooth but…

Physics · JEE Advanced · NTA Exams — Laws of Motion

Two blocks A and B are pushed against the wall with the force F. The wall is smooth but the surface in contact of A and B are rough. Which of the following is true for the system of the blocks?

1. F should be equal to weight of A and B for equilibrium.
2. F should be less than the weight of A and B for equilibrium.
3. F should be more than the weight of A and B for equilibrium
4. The system cannot be in equilibrium (at rest).

Answer

(D) The system cannot be in equilibrium (at rest).

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