A diesel engine weighs twice as much as a freight car. The diesel engine coasts at 3.1 km/h into a freight car that is i

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answerhappygod
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A diesel engine weighs twice as much as a freight car. The diesel engine coasts at 3.1 km/h into a freight car that is i

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A diesel engine weighs twice as much as a freight car. Thediesel engine coasts at 3.1 km/h into a freight car that isinitially at rest. Using conservation of momentum, calculate thespeed of the system engine+car after they couple together.
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