the three freight cars are rolling along the horizontal track with the
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The three freight cars are rolling along the horizontal track with the velocities shown. After the impacts occur, the three cars become coupled together and move with a common velocity
v. The weights of the loaded cars A, B, and C are 130,000, 100,000,and 150,000 lb, respectively. Determine v and calculate the percentage loss n of energy of the system due to coupling.