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A 2190 kg car moving east at 10.4 m/s collides with a 3170 kg car moving east. The cars stick together and move east as a unit after the collision at a velocity of 5.94 m/s.
a) What is the velocity of the 3170 kg car before the collision? Answer in units of m/s
b) What is the decrease in kinetic energy during the collision?
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