Center of Mass: Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0.0 m, 0.0 m), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of the center of mass (or center of gravity) of this system?
A. (1.3 m, 0.67 m)
B. (1.3 m, -0.67 m)
C. (-1.3 m, 0.67 m)
D. (-1.3 m, -0.67 m)
Answer: B
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a. 
b. 
c. 
d. 
e. 
f. 
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