Multiple Choice
A 16 cm by 16 cm checkerboard has a mass of 207 g.There are three 31.0-g checkers located on the checkerboard as shown in the figure.Relative to O,the origin,located at the bottom,left-hand corner of the checkerboard,where is the center of mass of the checkerboard and checkers system? 
A) (7.9 cm,6.5 cm)
B) (8.1 cm,6.7 cm)
C) (8.1 cm,7.1 cm)
D) (8.3 cm,6.5 cm)
E) (8.3 cm,6.8 cm)
Correct Answer:

Verified
Correct Answer:
Verified
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