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28 February, 19:21

A 7150-kg railroad car travels alone on a level frictionless track with a constant speed of a 3350-kg load, initially at rest, is dropped onto the car. what will be the car's new speed? the positive direction is the direction of the original motion of the car.

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  1. 28 February, 20:57
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    They dont kmow and it isnt solveable
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