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A block $B$ is pushed momentarily along a horizontal surface with an initial velocity $V$. If $\mu$ is the coefficient of sliding friction between B and the surface, block B will come to rest after a time.
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Verified Answer
The correct answer is:
$\frac{V}{g \mu}$
By using $v=u+a t$
$\begin{aligned}
0 & =v-\mu g t \\
\Rightarrow \quad t & =\frac{V}{\mu g}
\end{aligned}$
$\begin{aligned}
0 & =v-\mu g t \\
\Rightarrow \quad t & =\frac{V}{\mu g}
\end{aligned}$
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