Find the Center of Mass of the Point Masses Lying

Multiple Choice

Find the center of mass of the point masses lying on the x-axis. $\begin{array} { l } m _ { 1 } = 7 , m _ { 2 } = 10 , m _ { 3 } = 8 , m _ { 4 } = 10 , m _ { 5 } = 8 \\x _ { 1 } = - 9 , x _ { 2 } = - 2 , x _ { 3 } = - 6 , x _ { 4 } = 9 , x _ { 5 } = 6\end{array}$

A) $\bar { x } = \frac { 9 } { 43 }$
B) $\bar { x } = \frac { 10 } { 43 }$
C) $\bar { x } = \frac { 5 } { 23 }$
D) $\bar { x } = \frac { 6 } { 43 }$
E) $\bar { x } = \frac { 7 } { 43 }$