APFIVE Center of Mass of a Three-Object System
Objects with masses $$m$$ and $$3m$$ are located at positions $$x = 0$$ and $$x = d$$, respectively. A third object with mass $$2m$$ is to be placed such that the center of mass for the three-object system is at $$x = d$$. What is the required position for the third object?
A
x = 1.5d
B
x = d/2
C
x = 2d
D
x = 0.5d
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