Physics

Problem

4.0\,\text{kg}

block slides at

5.0\,\text{m}\,\text{s}^{-1}

on a horizontal, frictionless surface and collides with a

6.0\,\text{kg}

block at rest. The blocks stick together and immediately encounter a rough patch where the coefficient of kinetic friction between the blocks and the surface is

0.20

. How far do the combined blocks travel across the rough patch before coming to rest? a)

2.0\,\text{m}

1.0\,\text{m}

0.51\,\text{m}

2.6\,\text{m}

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