A 40 ton rail car and a 70 ton rail car, initially at rest, are connected together with a giant but massless compressed spring between them. When released, the 40 ton car is pushed away at a speed of 4.4 m/s relative to the 70 ton car. What is the speed of the 40 ton car relative to the ground?
A 40 ton rail car and a 70 ton rail car, initially at rest, are connected together with a giant but massless compressed spring between them. When released, the 40 ton car is pushed away at a speed of 4.4 m/s relative to the 70 ton car. What is the speed of the 40 ton car relative to the ground?
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter8: Momentum And Collisions
Section: Chapter Questions
Problem 31P
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A 40 ton rail car and a 70 ton rail car, initially at rest, are connected together with a giant but massless compressed spring between them. When released, the 40 ton car is pushed away at a speed of 4.4 m/s relative to the 70 ton car.
What is the speed of the 40 ton car relative to the ground?
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