Freight car A of mass mA is rolling to the rightwhen it collides with freight car B of
Chapter 3, Problem 3/252(choose chapter or problem)
Freight car A of mass \(m_{A}\) is rolling to the right when it collides with freight car B of mass \(m_{B}\) initially at rest. If the two cars are coupled together at impact, show that the fractional loss of energy equals \(m_{B} /\left(m_{A}+m_{B}\right)\).
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