Задача 11126.

A diesel locomotive weighing 500 tons pulls 10 cars weighing 50 tons each at a constant speed about a direct horizontal path. At some point, all the cars break away from the diesel locomotive, after which they move as a whole by inertia and stop. The diesel locomotive then moved 3 km, counting from the breakaway point. What was the path of the wagons during this time? Answer expressed in kilometers.

A detailed solution with a brief description of the condition, formulas and laws used in the solution, the derivation of the formula and the answer.
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