Task 10191.

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The car weighs 9.81 kN. While driving the vehicle a constant force of friction of 0.1 weight. What is the amount of gasoline consumed in the engine of the car is on the way to increase the speed of 0.5 km of the vehicle from 10 km / h to 40 km / h? The efficiency of the engine is 20%, the calorific value of gasoline 46000kDzh / kg.

Detailed solution shorthand terms, formulas, laws used in the decision, the withdrawal of the calculation formula and the response.

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