Physics, 20.12.2019 02:31 netflixacc0107

A1.20 × 104 kg railroad car moving at 7.70 m/s to the north collides with and sticks to another railroad car of the same mass that is moving in the same direction at 1.84 m/s. what is the velocity of the joined cars after the collision?

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A1.20 × 104 kg railroad car moving at 7.70 m/s to the north collides with and sticks to another rail...
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