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Find the velocity of the CoM of the System. V= 3 m/s. V= 0. A 3kg ball moves at 3 m/s towards a 1 kg ball at rest that is 100 meters away. 3 kg. Xcm. 1. Vcm = mv / m = {3kg x 3 /s + 0} / 4 kg = 2.25 m/s. Find the velocity of the CoM of the System. V= 3 m/s. V= 0. - PowerPoint PPT Presentation