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Physics, 09.10.2021 01:50 isabelcrosabal

A train has mass 250000 kg. Its motor accelerates the train to 25 m/s from a standing start in 45 seconds. The motor's power rating is 2.75 MW. How efficient is the motor?

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A train has mass 250000 kg. Its motor accelerates the train to 25 m/s from a standing start in 45 se...

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