An 80-Mg railroad engine A coasting at 6.5 km/h strikes a
Chapter 14, Problem 14.107(choose chapter or problem)
An 80-Mg railroad engine A coasting at 6.5 km/h strikes a 20-Mg flatcar C carrying a 30-Mg load B which can slide along the floor of the car \(\left(\mathrm{m}_{k}=0.25\right)\). Knowing that the car was at rest with its brakes released and that it automatically coupled with the engine upon impact, determine the velocity of the car (a) immediately after impact, (b) after the load has slid to a stop relative to the car.
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