Three point masses lie along the -axis: at

PHYSICS · Single correct · AP · Physics 1: Algebra-based · Force and Translational Dynamics · Force and Translational Dynamics

Problem

Three point masses lie along the

x

-axis:

1\,\text{kg}

x=0\,\text{m}

2\,\text{kg}

x=2\,\text{m}

, and

4\,\text{kg}

x=5\,\text{m}

. The

2\,\text{kg}

mass is suddenly removed from the system without disturbing the other two masses. What is the new

x

-coordinate of the center of mass of the remaining system? (a)

2.5\,\text{m}

(b)

3.5\,\text{m}

(c)

4.0\,\text{m}

(d)

4.8\,\text{m}