tayacall4212 tayacall4212

04-05-2024
Physics

Answered

A railroad car of mass 2.50×10⁴ is moving with a speed of 4.0m. It collides and couples with three other coupled railroad cars, each of the same mass as the single car and moving in the same direction with an initial speed of 2.0m. What is the speed of the four cars after the collision?

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