Two friends, Albert and Newton, are playing bubble soccer. In bubble soccer, you run around inside a large bouncy ball. Albert has a mass of 80 kg and runs at 1.2m/s [E]. Newton is holding a heavy bag of apples, and in total has a mass of 176 kg and runs at 2m/s [W]. They collide, and Albert bounces off with a velocity of 3.2 m/s [W]. What speed does Newton bounce back at?
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