A 300 Kg Mass Is Located at X = 2

Multiple Choice

A 3.00 kg mass is located at x = 2.0 cm and y = −4.0 cm. A 3.00 kg mass is located at x = −5.0 cm and y = 2.0 cm. A 4.00 kg mass is located at x = −3.0 cm and y = −3.0 cm. Where is the center of mass (x, y) ?

A) (−0.10 cm, −0.50 cm)
B) (−2.1 cm, −1.8 cm)
C) (+2.1 cm, −1.8 cm)
D) (−2.1 cm, +1.8 cm)
E) (+1.1 cm, −2.0 cm)