Question 1198125
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Due to the  Conservation  Law of mechanical energy,  the work done by the car engine
is equal to the change of the potential energy of the car.


The change of the potential energy of the car is


    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2500*500*sin(12°) = 2500*500*0.2079 = 259875 lb*ft,  approximately.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<U>ANSWER</U>
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Solved, answered and explained.