A diesel locomotive weighing 130 tons is approaching at a speed of 1.6 m / s to a stationary train weighing 1200 tons.

A diesel locomotive weighing 130 tons is approaching at a speed of 1.6 m / s to a stationary train weighing 1200 tons. At what speed will the train move after being coupled with the diesel locomotive?

Decision:
m1V1 = m2V2
V2 = 130 * 1.6 / (1200 + 130) = 208/1330 = 0.156 m / s
The answer is 0.156 m / s, the train will move after coupling with the locomotive.



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