Physics, 22.10.2020 17:01, brooklyn674

A 6.46 kg object moving with a velocity of 5.23 m/s is struck from behind by a moving 11.77 kg object. They stick together, moving off with a mutual velocity of 17.93 m/s. What was the original velocity of the 11.77 kg object before the collision?

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A 6.46 kg object moving with a velocity of 5.23 m/s is struck from behind by a moving 11.77 kg objec...