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? Express your answer to three significant figures and include the appropriate units.

Principles of Physics: A Calculus-Based Text
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ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
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Chapter8: Momentum And Collisions
Section: Chapter Questions
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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?
Express your answer to three significant figures and include the appropriate units.
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