Masses Are Distributed in the Xy-Plane as Follows: 10 Kg

question 39

Multiple Choice

Masses are distributed in the xy-plane as follows: 10 kg at (2.0,6.0) m,4.0 kg at (2.0,0.0) m,and 6.0 kg at (0.0,3.0) m.Where would a 20-kg mass need to be positioned so that the center of gravity of the resulting four mass system would be at the origin?

• A)(1.4,3.9)m
• B)(3.9,1.4)m
• C)(-1.4,-3.9)m
• D)(-3.9,-1.4)m