Author Question: Three particles are placed in the xy plane. A 30-g particle is located at (3, 4) m, and a 40-g ... (Read 123 times)

ericka1 · **on:** Jul 28, 2018

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

Question 2

Three particles are placed in the xy plane. A 40-g particle is located at (3, 4) m, and a 50-g particle is positioned at (-2, -6) m. Where must a 20-g particle be placed so that the center of mass of this three-particle system is located at the origin?
a. (-1, -3) m
b. (-1, 2) m
c. (-1, 12) m
d. (-1, 7) m
e. (-1, 3) m