The driver of an 1600 kg car (including passengers) traveling at 24.0 m/s slams on the brakes, locking the wheels on the dry pavement. The coefficient of kinetic friction between rubber and dry concrete is typically 0.800. 1) Use the work-energy principle to calculate how far the car will travel before stopping. Express your answer with the appropriate units.   2) How far would the car travel if it were going twice as fast? Express your answer with the appropriate units.   3) What happened to the car's original kinetic energy?

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