(I) A 7150-kg railroad car travels alone on a level
Chapter 7, Problem 3P(choose chapter or problem)
Problem 3P
(I) A 7150-kg railroad car travels alone on a level frictionless track with a constant speed of 15.0 m/s. A 3350-kg load, initially at rest, is dropped onto the car. What will be the car’s new speed?
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