Task id12621
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Task id12621
1/3 of the train is uncoupled from a train moving along a horizontal section of track at a constant speed v0. After some time, the speed of the uncoupled cars decreased by half. Assuming that the traction force did not change when the train broke, determine the speed of the head of the train at this moment. The friction force is proportional to weight and does not depend on speed.
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Detailed solution. Format gif
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