Physics

Problem

4\,\text{kg}

block rests on a horizontal floor with coefficients of friction

\mu_s=0.4

and

\mu_k=0.3

. A constant horizontal force of

25\,\text{N}

is applied for

3\,\text{s}

, after which the force is suddenly removed. How far from its starting point will the block finally come to rest? (Take

g=10\,\text{m s}^{-2}

) a)

26\,\text{m}

38\,\text{m}

30\,\text{m}

18\,\text{m}