Preserved in the two-coupled cars after collision

Reference no: EM13654704

A railroad freight car, mass 15,000 kg, isallowed to coast along a level track at a speed of 2.0 m/s. Itcollides and couples with a 50,000 kg loaded second car, initiallyat rest and with brakes released. What percentage of the initialkinetic energy of the 15,000 kg is preserved in the two-coupledcars after collision?

Reference no: EM13654704

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