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The minimum v...

Question

The minimum value of F such that block remains at rest is

A

μ m g

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B

\frac{m g}{μ}

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C

m g

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D

μ^{2} m g

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Solution

The correct option is B $\frac{m g}{μ}$
$\begin{matrix} f = m g \Rightarrow μ (f) = m g f = \frac{m g}{μ} H e n c e, o p t i o n B i s c o r r e c t . \end{matrix}$

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