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HippoCampus Physics 8 Online
OpenStudy (anonymous):

A 1 . 38 × 10 4 kg railroad car moving at 6.68 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 1.40 m/s. What is the velocity of the joined cars after the collision?

jaynator495 (jaynator495):

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