M A 3.0 kg model train going right at 2.8 bumps into another 2.0 kg model train car moving in the same
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m
direction at 1.6 . The heavier train car has a final speed of 2.2 to the right.
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What is the final speed of the lighter 2.0 kg train car?

it’s 2.5 m/s

Explanation:

i’m too lazy but trust

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.

technology is the application of the knowledge gained by science.