We are interested in the amount of gasoline consumed to accelerate a car of mass 5000 kg

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We are interested in the amount of gasoline consumed to accelerate a car of mass 5000 kg from 5 to 30 m/s (about 60 mph) on a freeway ramp. The ramp has a height of 15 m. Assuming the internal energy of the car to remain constant.
(a) Determine the change in stored energy E of the car.
(b) If the heating value of gasoline is 44 MJ/kg and the engine has a thermal efficiency of 30%, determine the amount of gasoline (in kg) that will be consumed as the car moves through the ramp. Assume all the engine power goes into the kientic and potential energies of the car.
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