Physics

Problem

Three particles have masses

1\,\text{kg}

2\,\text{kg}

, and

3\,\text{kg}

. Their velocities along the

x

-axis are

+2\,\text{m}\!/\!\text{s}

0

, and

-1\,\text{m}\!/\!\text{s}

, respectively. Calculate both the magnitude and direction of the center-of-mass velocity of the system.