Class 11PhysicsNewton's Laws of Motion and FrictionThe Common Forces and Equilibrium of Concurrent Forces
MediumBlock $A$ of mass $4 \; kg$ is to be kept at rest against a smooth vertical wall by applying a force $F$ as shown in the figure. The force required is .......... $N$ $\left(g = 10 \; m/s^2\right)$. (in $\sqrt{2}$)
- A$40$
- B$20$
- C$10$
- D$15$
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