Block $A$ of mass $4 \;kg$ is to be kept at rest against a smooth vertical wall by applying a force $F$ as shown in figure. The force required is .......... $N$ $\left(g=10 m / s ^2\right)$
Block $A$ of mass $4 \;kg$ is to be kept at rest against a smooth vertical wall by applying a force $F$ as shown in figure. The force required is .......... $N$ $\left(g=10 m / s ^2\right)$
- A
$40 \sqrt{2}$
- B
$20 \sqrt{2}$
- C
$10 \sqrt{2}$
- D
$15 \sqrt{2}$
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- [AIEEE 2010]
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