Physics

Problem

3\,\text{kg}

mass is fixed at

x=0

. A second point mass

m

is placed at

x=0.80\,\text{m}

. If the center of mass of the two-mass system lies at

x=0.20\,\text{m}

, what is the value of

m

? a)

0.75\,\text{kg}

1.8\,\text{kg}

1.0\,\text{kg}

0.50\,\text{kg}