A 7100-kg railroad car travels alone on a level frictionless track with a constant speed of 16.0 m/s . A 2650-kg load, initially at rest, is dropped onto the car.What will be the car's new speed?
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A 7100-kg railroad car travels alone on a level frictionless track with a constant speed of 16.0 m/s . A 2650-kg load, initially at rest, is dropped onto the car.What will be the car's new speed?
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