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An automobile having a mass of 900 kg initially moves along a level highway at 100 km/hr relative to the highway. It then climbs a hill whose crest is 50m above thelevel highway and parks at a rest area located there. For the automobile, determine its changes in kinetic and potential energy, each in kJ. For each quantity, kineticenergy and potential energy, specify your choice of datum and reference value at that datum. Let g = 9.81 m/s2
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