x-component of COM = m1x1 + m2x2 + m3x3 / m1 + m2 + m3
= 0.02*0 + 0.03*3 + 0.04*2 / 0.02 + 0.03 + 0.04
= 1.89
y-component of COM = m1y1 + m2y2 + m3y3 / m1 + m2 + m3
= 0.02*0 + 0.03*0 + 0.04*2 / 0.02 + 0.03 + 0.04
= 0.89
so COM is at (1.89,0.89)
if mass m1=0.02 kg is at (0,0) mass m2=0.03 kg is at (3,0) mass m3=0.04 kg...
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