The electric motor of a model train accelerates the train
The electric motor of a model train accelerates the train from rest to 0.640 m/s in 22.0 ms. The total mass of the train is 530 g. Find the average power delivered to the train during its acceleration. W
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a man pushing a crate of mass m 920 kg at a speed of v 0870 ms encounters a rough horizontal surface of length script
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the electric motor of a model train accelerates the train from rest to 0640 ms in 220 ms the total mass of the train is
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