Three particles are placed in the xy plane. A 30-g particle is located at (3, 4) m, and a 40-g particle is located at (?2, ?2) m. Where must a 20-g particle be placed so that the center of mass of the three-particle system is at the origin?
a. (?3, ?1) m
b. (+1, +3) m
c. (+3, ?1) m
d. (?1, ?3) m
e. (?0.5, ?2) m
e
Physics & Space Science
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