A train has a mass of 465e6 kg and is moving at 514 kmhr, Ask an Expert

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A train has a mass of 4.65E+6 kg and is moving at 51.4 km/hr. The engineer applies the brakes, which results in a net backward force of 1.54E+6 N on the train. The brakes are held on for 28.9 s. What is the new speed of the train?

How far does it travel during this period?

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