On a horizontal section of the track 3 km long, the

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On a horizontal section of the track 3 km long, the speed of the car increased from 36 km/h to 72 km/h. Vehicle weight 3 tons, friction coefficient 0.01. What is the work done by the car engine.

Problem 10393. A detailed solution with a brief note of the conditions, formulas and laws used in the solution, the derivation of the calculation formula and the answer.
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