Energy, Work and Power

Energy, Work and Power problem 43

A car with a mass of 1.4 t descends a slope. At the top of the slope, the car's speed is 18 km / h. It drops by 12 m while driving downhill and has a speed of 54 km / h at the end. Calculate the work that the car exchanges with its surroundings while driving downhill. We ignore air resistance.


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